diff --git a/package.json b/package.json
index 1b4a59cc7f..52c495044e 100644
--- a/package.json
+++ b/package.json
@@ -46,7 +46,6 @@
         "@rollup/plugin-typescript": "^11.1.6",
         "@types/babel__core": "^7.20.5",
         "@types/node": "^22.1.0",
-        "@types/prettier": "^2.7.3",
         "@vitest/coverage-v8": "^2.0.5",
         "@vitest/ui": "^2.0.5",
         "bytes": "^3.1.2",
@@ -64,7 +63,7 @@
         "lint-staged": "^15.2.8",
         "magic-string": "^0.30.11",
         "nx": "19.5.6",
-        "prettier": "^2.8.8",
+        "prettier": "^3.3.3",
         "rollup": "^4.20.0",
         "terser": "^5.31.3",
         "tslib": "^2.6.3",
diff --git a/packages/@lwc/babel-plugin-component/src/decorators/api/transform.ts b/packages/@lwc/babel-plugin-component/src/decorators/api/transform.ts
index f156a0cd51..6dcf2c5464 100644
--- a/packages/@lwc/babel-plugin-component/src/decorators/api/transform.ts
+++ b/packages/@lwc/babel-plugin-component/src/decorators/api/transform.ts
@@ -55,30 +55,33 @@ function computePublicPropsConfig(
     publicPropertyMetas: DecoratorMeta[],
     classBodyItems: NodePath<ClassBodyItem>[]
 ) {
-    return publicPropertyMetas.reduce((acc, { propertyName, decoratedNodeType }) => {
-        if (!(propertyName in acc)) {
-            acc[propertyName] = {};
-        }
-        acc[propertyName].config |= getPropertyBitmask(decoratedNodeType);
+    return publicPropertyMetas.reduce(
+        (acc, { propertyName, decoratedNodeType }) => {
+            if (!(propertyName in acc)) {
+                acc[propertyName] = {};
+            }
+            acc[propertyName].config |= getPropertyBitmask(decoratedNodeType);
 
-        if (
-            decoratedNodeType === DECORATOR_TYPES.GETTER ||
-            decoratedNodeType === DECORATOR_TYPES.SETTER
-        ) {
-            // With the latest decorator spec, only one of the getter/setter pair needs a decorator.
-            // We need to add the proper bitmask for the sibling getter/setter if it exists.
-            const pairType = getSiblingGetSetPairType(
-                propertyName,
-                decoratedNodeType,
-                classBodyItems
-            );
-            if (pairType) {
-                acc[propertyName].config |= getPropertyBitmask(pairType);
+            if (
+                decoratedNodeType === DECORATOR_TYPES.GETTER ||
+                decoratedNodeType === DECORATOR_TYPES.SETTER
+            ) {
+                // With the latest decorator spec, only one of the getter/setter pair needs a decorator.
+                // We need to add the proper bitmask for the sibling getter/setter if it exists.
+                const pairType = getSiblingGetSetPairType(
+                    propertyName,
+                    decoratedNodeType,
+                    classBodyItems
+                );
+                if (pairType) {
+                    acc[propertyName].config |= getPropertyBitmask(pairType);
+                }
             }
-        }
 
-        return acc;
-    }, {} as { [key: string]: { [key: string]: number } });
+            return acc;
+        },
+        {} as { [key: string]: { [key: string]: number } }
+    );
 }
 
 export default function transform(
diff --git a/packages/@lwc/babel-plugin-component/src/decorators/index.ts b/packages/@lwc/babel-plugin-component/src/decorators/index.ts
index 31cce4871a..8ab1c7137f 100644
--- a/packages/@lwc/babel-plugin-component/src/decorators/index.ts
+++ b/packages/@lwc/babel-plugin-component/src/decorators/index.ts
@@ -77,19 +77,22 @@ function validateImportedLwcDecoratorUsage(
 ) {
     engineImportSpecifiers
         .filter(({ name }) => isLwcDecoratorName(name))
-        .reduce((acc, { name, path }) => {
-            // Get a list of all the  local references
-            const local = path.get('imported') as NodePath<types.Identifier>;
-            const references = getReferences(local).map((reference) => ({
-                name,
-                reference,
-            }));
-
-            return [...acc, ...references] as {
-                name: string;
-                reference: NodePath<types.Node>;
-            }[];
-        }, [] as { name: string; reference: NodePath<types.Node> }[])
+        .reduce(
+            (acc, { name, path }) => {
+                // Get a list of all the  local references
+                const local = path.get('imported') as NodePath<types.Identifier>;
+                const references = getReferences(local).map((reference) => ({
+                    name,
+                    reference,
+                }));
+
+                return [...acc, ...references] as {
+                    name: string;
+                    reference: NodePath<types.Node>;
+                }[];
+            },
+            [] as { name: string; reference: NodePath<types.Node> }[]
+        )
         .forEach(({ name, reference }) => {
             // Get the decorator from the identifier
             // If the the decorator is:
diff --git a/packages/@lwc/babel-plugin-component/src/decorators/track/index.ts b/packages/@lwc/babel-plugin-component/src/decorators/track/index.ts
index de1d2759d5..894d178a1d 100644
--- a/packages/@lwc/babel-plugin-component/src/decorators/track/index.ts
+++ b/packages/@lwc/babel-plugin-component/src/decorators/track/index.ts
@@ -36,10 +36,13 @@ function transform(t: BabelTypes, decoratorMetas: DecoratorMeta[]) {
     const objectProperties = [];
     const trackDecoratorMetas = decoratorMetas.filter(isTrackDecorator);
     if (trackDecoratorMetas.length) {
-        const config = trackDecoratorMetas.reduce((acc, meta) => {
-            acc[meta.propertyName] = TRACK_PROPERTY_VALUE;
-            return acc;
-        }, {} as { [key: string]: number });
+        const config = trackDecoratorMetas.reduce(
+            (acc, meta) => {
+                acc[meta.propertyName] = TRACK_PROPERTY_VALUE;
+                return acc;
+            },
+            {} as { [key: string]: number }
+        );
         objectProperties.push(
             t.objectProperty(t.identifier(LWC_COMPONENT_PROPERTIES.TRACK), t.valueToNode(config))
         );
diff --git a/packages/@lwc/babel-plugin-component/src/decorators/wire/transform.ts b/packages/@lwc/babel-plugin-component/src/decorators/wire/transform.ts
index 9f2cfebb9b..5b8cf3d84c 100644
--- a/packages/@lwc/babel-plugin-component/src/decorators/wire/transform.ts
+++ b/packages/@lwc/babel-plugin-component/src/decorators/wire/transform.ts
@@ -267,7 +267,7 @@ export default function transform(t: BabelTypes, decoratorMetas: DecoratorMeta[]
     const wiredValues = decoratorMetas.filter(isWireDecorator).map(({ path }) => {
         const [id, config] = path.get('expression.arguments') as [
             NodePath,
-            NodePath<types.ObjectExpression> | undefined
+            NodePath<types.ObjectExpression> | undefined,
         ];
 
         const propertyName = (path.parentPath.get('key.name') as any).node as string;
diff --git a/packages/@lwc/engine-core/src/framework/base-lightning-element.ts b/packages/@lwc/engine-core/src/framework/base-lightning-element.ts
index 45a046007e..4db74e37be 100644
--- a/packages/@lwc/engine-core/src/framework/base-lightning-element.ts
+++ b/packages/@lwc/engine-core/src/framework/base-lightning-element.ts
@@ -810,7 +810,7 @@ if (process.env.IS_BROWSER) {
     // aria* properties
     for (const [propName, descriptor] of entries(ariaReflectionPolyfillDescriptors) as [
         name: string,
-        descriptor: PropertyDescriptor
+        descriptor: PropertyDescriptor,
     ][]) {
         lightningBasedDescriptors[propName] = createBridgeToElementDescriptor(propName, descriptor);
     }
diff --git a/packages/@lwc/engine-core/src/framework/wiring/types.ts b/packages/@lwc/engine-core/src/framework/wiring/types.ts
index 11f4cfb312..5216ae5670 100644
--- a/packages/@lwc/engine-core/src/framework/wiring/types.ts
+++ b/packages/@lwc/engine-core/src/framework/wiring/types.ts
@@ -15,7 +15,7 @@ export type ContextValue = Record<string, any>;
 
 export interface WireAdapter<
     Config extends ConfigValue = ConfigValue,
-    Context extends ContextValue = ContextValue
+    Context extends ContextValue = ContextValue,
 > {
     update(config: Config, context?: Context): void;
     connect(): void;
@@ -25,12 +25,12 @@ export interface WireAdapter<
 export interface WireAdapterConstructor<
     Config extends ConfigValue = ConfigValue,
     Value = any,
-    Context extends ContextValue = ContextValue
+    Context extends ContextValue = ContextValue,
 > {
-    new (callback: DataCallback<Value>, sourceContext?: { tagName: string }): WireAdapter<
-        Config,
-        Context
-    >;
+    new (
+        callback: DataCallback<Value>,
+        sourceContext?: { tagName: string }
+    ): WireAdapter<Config, Context>;
     configSchema?: Record<keyof Config, WireAdapterSchemaValue>;
     contextSchema?: Record<keyof Context, WireAdapterSchemaValue>;
 }
diff --git a/packages/@lwc/integration-karma/scripts/karma-plugins/hydration-tests.js b/packages/@lwc/integration-karma/scripts/karma-plugins/hydration-tests.js
index c645fa4c80..3e795504be 100644
--- a/packages/@lwc/integration-karma/scripts/karma-plugins/hydration-tests.js
+++ b/packages/@lwc/integration-karma/scripts/karma-plugins/hydration-tests.js
@@ -151,12 +151,10 @@ function createHCONFIG2JSPreprocessor(config, logger, emitter) {
         const describeTitle = path.relative(basePath, suiteDir).split(path.sep).join(' ');
 
         try {
-            const { code: testCode, watchFiles: testWatchFiles } = await getTestModuleCode(
-                filePath
-            );
-            const { code: componentDef, watchFiles: componentWatchFiles } = await getCompiledModule(
-                suiteDir
-            );
+            const { code: testCode, watchFiles: testWatchFiles } =
+                await getTestModuleCode(filePath);
+            const { code: componentDef, watchFiles: componentWatchFiles } =
+                await getCompiledModule(suiteDir);
             // You can add an `.only` file alongside an `index.spec.js` file to make it `fdescribe()`
             const onlyFileExists = await exists(path.join(suiteDir, '.only'));
 
diff --git a/packages/@lwc/integration-karma/test/light-dom/slot-fowarding/slots/forwarding/index.spec.js b/packages/@lwc/integration-karma/test/light-dom/slot-fowarding/slots/forwarding/index.spec.js
index 8404b2378d..3c87d8681b 100644
--- a/packages/@lwc/integration-karma/test/light-dom/slot-fowarding/slots/forwarding/index.spec.js
+++ b/packages/@lwc/integration-karma/test/light-dom/slot-fowarding/slots/forwarding/index.spec.js
@@ -91,13 +91,13 @@ describe('slot forwarding', () => {
         const defaultSlotTextIndex = USE_LIGHT_DOM_SLOT_FORWARDING
             ? 12
             : USE_COMMENTS_FOR_FRAGMENT_BOOKENDS
-            ? 11
-            : 4;
+              ? 11
+              : 4;
         const defaultSlotCommentIndex = USE_LIGHT_DOM_SLOT_FORWARDING
             ? 13
             : USE_COMMENTS_FOR_FRAGMENT_BOOKENDS
-            ? 12
-            : 5;
+              ? 12
+              : 5;
 
         expect(lightLightLeaf.childNodes[defaultSlotTextIndex].textContent).toEqual(
             expectedDefaultSlot.textContent
diff --git a/packages/@lwc/integration-karma/test/rendering/callback-invocation-order/index.spec.js b/packages/@lwc/integration-karma/test/rendering/callback-invocation-order/index.spec.js
index 4a72fded34..be148d43b7 100644
--- a/packages/@lwc/integration-karma/test/rendering/callback-invocation-order/index.spec.js
+++ b/packages/@lwc/integration-karma/test/rendering/callback-invocation-order/index.spec.js
@@ -328,20 +328,20 @@ describe('regression test (#3827)', () => {
                 process.env.NATIVE_SHADOW
                     ? []
                     : !lwcRuntimeFlags.DISABLE_NATIVE_CUSTOM_ELEMENT_LIFECYCLE
-                    ? [
-                          `leaf:${currentLeafName}:connectedCallback`,
-                          `leaf:${previousLeafName}:disconnectedCallback`,
-                      ]
-                    : [`leaf:${currentLeafName}:connectedCallback`],
+                      ? [
+                            `leaf:${currentLeafName}:connectedCallback`,
+                            `leaf:${previousLeafName}:disconnectedCallback`,
+                        ]
+                      : [`leaf:${currentLeafName}:connectedCallback`],
             elseIfBlock: (currentLeafName, previousLeafName) =>
                 process.env.NATIVE_SHADOW
                     ? []
                     : !lwcRuntimeFlags.DISABLE_NATIVE_CUSTOM_ELEMENT_LIFECYCLE
-                    ? [
-                          `leaf:${currentLeafName}:connectedCallback`,
-                          `leaf:${previousLeafName}:disconnectedCallback`,
-                      ]
-                    : [`leaf:${currentLeafName}:connectedCallback`],
+                      ? [
+                            `leaf:${currentLeafName}:connectedCallback`,
+                            `leaf:${previousLeafName}:disconnectedCallback`,
+                        ]
+                      : [`leaf:${currentLeafName}:connectedCallback`],
         },
         {
             fixtureName: 'light DOM',
diff --git a/packages/@lwc/integration-tests/README.md b/packages/@lwc/integration-tests/README.md
index 2851cab1ba..566ce7123b 100644
--- a/packages/@lwc/integration-tests/README.md
+++ b/packages/@lwc/integration-tests/README.md
@@ -137,7 +137,7 @@ Here `<functional-area>` would be the broader area under test such as events, sl
 
 In the above example, `app` and `child` are present because the test verifies event handling between a child and parent component and to reflect the playground setup, but are not required for every test. `<specific-repro>.html` may also use the `<test-case>` template currently used in some lwc-integration tests to cleanly display Github issue and Lightning Web Components playground links.
 
-The level describe blocks inside `<specific-repro>.spec.js` should also note the Github issue number if relevant. For example, `` describe('Issue 657: Cannot attach event in `connectedCallback`', () => {...}) ``.
+The level describe blocks inside `<specific-repro>.spec.js` should also note the Github issue number if relevant. For example, ``describe('Issue 657: Cannot attach event in `connectedCallback`', () => {...})``.
 
 If it doesn't require additional components for the repro, you could simply have
 
diff --git a/packages/@lwc/ssr-compiler/src/compile-template/text.ts b/packages/@lwc/ssr-compiler/src/compile-template/text.ts
index e560c9aa1d..ffdf883aaa 100644
--- a/packages/@lwc/ssr-compiler/src/compile-template/text.ts
+++ b/packages/@lwc/ssr-compiler/src/compile-template/text.ts
@@ -37,7 +37,7 @@ const bYieldEscapedString = esTemplateWithYield<
         EsIdentifier,
         EsIdentifier,
         EsIdentifier,
-        EsIdentifier
+        EsIdentifier,
     ]
 >`
     const ${is.identifier} = ${is.expression};
diff --git a/packages/@lwc/ssr-compiler/src/estemplate.ts b/packages/@lwc/ssr-compiler/src/estemplate.ts
index 0a1d429773..5ca735eba9 100644
--- a/packages/@lwc/ssr-compiler/src/estemplate.ts
+++ b/packages/@lwc/ssr-compiler/src/estemplate.ts
@@ -139,7 +139,7 @@ function esTemplateImpl<RetType = EsNode, ArgTypes extends ReplacementNode[] = R
 
 export function esTemplate<
     RetType = EsNode,
-    ArgTypes extends ReplacementNode[] = ReplacementNode[]
+    ArgTypes extends ReplacementNode[] = ReplacementNode[],
 >(
     javascriptSegments: TemplateStringsArray,
     ...validatorFns: Validator[]
@@ -149,7 +149,7 @@ export function esTemplate<
 
 export function esTemplateWithYield<
     RetType = EsNode,
-    ArgTypes extends ReplacementNode[] = ReplacementNode[]
+    ArgTypes extends ReplacementNode[] = ReplacementNode[],
 >(
     javascriptSegments: TemplateStringsArray,
     ...validatorFns: Validator[]
diff --git a/packages/@lwc/ssr-runtime/src/index.ts b/packages/@lwc/ssr-runtime/src/index.ts
index cdbb0cf69c..fd219c741e 100644
--- a/packages/@lwc/ssr-runtime/src/index.ts
+++ b/packages/@lwc/ssr-runtime/src/index.ts
@@ -124,7 +124,7 @@ export class LightningElement {
 
     getAttribute(attrName: string): string | null {
         const value = this.__attrs?.[attrName];
-        return value === true ? '' : value ?? null;
+        return value === true ? '' : (value ?? null);
     }
 }
 
diff --git a/packages/@lwc/synthetic-shadow/src/faux-shadow/element.ts b/packages/@lwc/synthetic-shadow/src/faux-shadow/element.ts
index 3ac39619e4..293c8608bf 100644
--- a/packages/@lwc/synthetic-shadow/src/faux-shadow/element.ts
+++ b/packages/@lwc/synthetic-shadow/src/faux-shadow/element.ts
@@ -408,7 +408,7 @@ if (process.env.NODE_ENV !== 'test') {
                         this,
                         ArraySlice.call(arguments as unknown as unknown[]) as [
                             namespace: string,
-                            localName: string
+                            localName: string,
                         ]
                     )
                 );
diff --git a/packages/@lwc/synthetic-shadow/src/faux-shadow/slot.ts b/packages/@lwc/synthetic-shadow/src/faux-shadow/slot.ts
index 0e09aab1ed..acd480a4a4 100644
--- a/packages/@lwc/synthetic-shadow/src/faux-shadow/slot.ts
+++ b/packages/@lwc/synthetic-shadow/src/faux-shadow/slot.ts
@@ -156,7 +156,7 @@ defineProperties(HTMLSlotElement.prototype, {
                 return originalAssignedElements.apply(
                     this,
                     ArraySlice.call(arguments as unknown as unknown[]) as [
-                        options?: AssignedNodesOptions
+                        options?: AssignedNodesOptions,
                     ]
                 );
             }
@@ -176,7 +176,7 @@ defineProperties(HTMLSlotElement.prototype, {
                 return originalAssignedNodes.apply(
                     this,
                     ArraySlice.call(arguments as unknown as unknown[]) as [
-                        options?: AssignedNodesOptions
+                        options?: AssignedNodesOptions,
                     ]
                 );
             }
diff --git a/packages/@lwc/template-compiler/src/__tests__/fixtures.spec.ts b/packages/@lwc/template-compiler/src/__tests__/fixtures.spec.ts
index 15171d2903..c1c692abb4 100644
--- a/packages/@lwc/template-compiler/src/__tests__/fixtures.spec.ts
+++ b/packages/@lwc/template-compiler/src/__tests__/fixtures.spec.ts
@@ -18,7 +18,7 @@ describe('fixtures', () => {
             root: path.resolve(__dirname, 'fixtures'),
             pattern: '**/actual.html',
         },
-        ({ src, dirname }) => {
+        async ({ src, dirname }) => {
             const configPath = path.resolve(dirname, 'config.json');
             const filename = path.basename(dirname);
 
@@ -38,8 +38,10 @@ describe('fixtures', () => {
             );
 
             return {
-                // TODO [#4386]: Prettier v3 returns a promise - add an `await` here
-                'expected.js': prettier.format(code, { parser: 'babel' }),
+                'expected.js': await prettier.format(code, {
+                    parser: 'babel',
+                    trailingComma: 'es5',
+                }),
                 'ast.json': JSON.stringify({ root }, null, 4),
                 'metadata.json': JSON.stringify({ warnings }, null, 4),
             };
diff --git a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic-components/if-elseif-else-nested/expected.js b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic-components/if-elseif-else-nested/expected.js
index 9b5aa0189f..e48ce7d27d 100644
--- a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic-components/if-elseif-else-nested/expected.js
+++ b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic-components/if-elseif-else-nested/expected.js
@@ -20,26 +20,30 @@ function tmpl($api, $cmp, $slotset, $ctx) {
     $cmp.outer.if
       ? api_fragment(0, [api_static_fragment($fragment1, 2)], 0)
       : $cmp.outer.elseif1
-      ? api_fragment(0, [api_static_fragment($fragment2, 4)], 0)
-      : $cmp.outer.elseif2
-      ? api_fragment(
-          0,
-          [
-            $cmp.inner.if
-              ? api_fragment(5, [api_static_fragment($fragment3, 7)], 0)
-              : $cmp.inner.elseif
-              ? api_fragment(5, [api_static_fragment($fragment4, 9)], 0)
-              : $cmp.inner.elseif2
-              ? api_fragment(
-                  5,
-                  [api_dynamic_component($cmp.trackedProp.foo, stc0)],
-                  0
-                )
-              : api_fragment(5, [api_static_fragment($fragment5, 12)], 0),
-          ],
-          0
-        )
-      : api_fragment(0, [api_static_fragment($fragment6, 14)], 0),
+        ? api_fragment(0, [api_static_fragment($fragment2, 4)], 0)
+        : $cmp.outer.elseif2
+          ? api_fragment(
+              0,
+              [
+                $cmp.inner.if
+                  ? api_fragment(5, [api_static_fragment($fragment3, 7)], 0)
+                  : $cmp.inner.elseif
+                    ? api_fragment(5, [api_static_fragment($fragment4, 9)], 0)
+                    : $cmp.inner.elseif2
+                      ? api_fragment(
+                          5,
+                          [api_dynamic_component($cmp.trackedProp.foo, stc0)],
+                          0
+                        )
+                      : api_fragment(
+                          5,
+                          [api_static_fragment($fragment5, 12)],
+                          0
+                        ),
+              ],
+              0
+            )
+          : api_fragment(0, [api_static_fragment($fragment6, 14)], 0),
   ];
   /*LWC compiler vX.X.X*/
 }
diff --git a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic-components/if-elseif-else/expected.js b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic-components/if-elseif-else/expected.js
index ad5c124e56..be231663e1 100644
--- a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic-components/if-elseif-else/expected.js
+++ b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic-components/if-elseif-else/expected.js
@@ -16,8 +16,12 @@ function tmpl($api, $cmp, $slotset, $ctx) {
     $cmp.visible.if
       ? api_fragment(0, [api_static_fragment($fragment1, 2)], 0)
       : $cmp.visible.elseif
-      ? api_fragment(0, [api_static_fragment($fragment2, 4)], 0)
-      : api_fragment(0, [api_dynamic_component($cmp.trackedProp.foo, stc0)], 0),
+        ? api_fragment(0, [api_static_fragment($fragment2, 4)], 0)
+        : api_fragment(
+            0,
+            [api_dynamic_component($cmp.trackedProp.foo, stc0)],
+            0
+          ),
   ];
   /*LWC compiler vX.X.X*/
 }
diff --git a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic-components/if-elseif-multiple/expected.js b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic-components/if-elseif-multiple/expected.js
index 9c36a2d0c4..c0bff10c59 100644
--- a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic-components/if-elseif-multiple/expected.js
+++ b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic-components/if-elseif-multiple/expected.js
@@ -17,10 +17,14 @@ function tmpl($api, $cmp, $slotset, $ctx) {
     $cmp.visible.if
       ? api_fragment(0, [api_static_fragment($fragment1, 2)], 0)
       : $cmp.visible.elseif
-      ? api_fragment(0, [api_static_fragment($fragment2, 4)], 0)
-      : $cmp.visible.elseif2
-      ? api_fragment(0, [api_dynamic_component($cmp.trackedProp.foo, stc0)], 0)
-      : api_fragment(0, [api_static_fragment($fragment3, 7)], 0),
+        ? api_fragment(0, [api_static_fragment($fragment2, 4)], 0)
+        : $cmp.visible.elseif2
+          ? api_fragment(
+              0,
+              [api_dynamic_component($cmp.trackedProp.foo, stc0)],
+              0
+            )
+          : api_fragment(0, [api_static_fragment($fragment3, 7)], 0),
   ];
   /*LWC compiler vX.X.X*/
 }
diff --git a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic-components/if-elseif/expected.js b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic-components/if-elseif/expected.js
index e027488955..9febbd9d00 100644
--- a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic-components/if-elseif/expected.js
+++ b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic-components/if-elseif/expected.js
@@ -15,8 +15,12 @@ function tmpl($api, $cmp, $slotset, $ctx) {
     $cmp.visible.if
       ? api_fragment(0, [api_static_fragment($fragment1, 2)], 0)
       : $cmp.visible.elseif
-      ? api_fragment(0, [api_dynamic_component($cmp.trackedProp.foo, stc0)], 0)
-      : null,
+        ? api_fragment(
+            0,
+            [api_dynamic_component($cmp.trackedProp.foo, stc0)],
+            0
+          )
+        : null,
   ];
   /*LWC compiler vX.X.X*/
 }
diff --git a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic-components/inline/expected.js b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic-components/inline/expected.js
index d3b7aa87a6..c8ab45175c 100644
--- a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic-components/inline/expected.js
+++ b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic-components/inline/expected.js
@@ -31,24 +31,24 @@ function tmpl($api, $cmp, $slotset, $ctx) {
           0
         )
       : $cmp.visible.elseif
-      ? api_fragment(
-          0,
-          [
-            api_dynamic_component($cmp.ctor2, stc1, [
-              api_static_fragment($fragment2, 6),
-            ]),
-          ],
-          0
-        )
-      : api_fragment(
-          0,
-          [
-            api_dynamic_component($cmp.ctor3, stc2, [
-              api_static_fragment($fragment3, 9),
-            ]),
-          ],
-          0
-        ),
+        ? api_fragment(
+            0,
+            [
+              api_dynamic_component($cmp.ctor2, stc1, [
+                api_static_fragment($fragment2, 6),
+              ]),
+            ],
+            0
+          )
+        : api_fragment(
+            0,
+            [
+              api_dynamic_component($cmp.ctor3, stc2, [
+                api_static_fragment($fragment3, 9),
+              ]),
+            ],
+            0
+          ),
   ];
   /*LWC compiler vX.X.X*/
 }
diff --git a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic/if-elseif-else-nested/expected.js b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic/if-elseif-else-nested/expected.js
index 8c22d0acbe..9886a4717e 100644
--- a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic/if-elseif-else-nested/expected.js
+++ b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic/if-elseif-else-nested/expected.js
@@ -20,32 +20,36 @@ function tmpl($api, $cmp, $slotset, $ctx) {
     $cmp.outer.if
       ? api_fragment(0, [api_static_fragment($fragment1, 2)], 0)
       : $cmp.outer.elseif1
-      ? api_fragment(0, [api_static_fragment($fragment2, 4)], 0)
-      : $cmp.outer.elseif2
-      ? api_fragment(
-          0,
-          [
-            $cmp.inner.if
-              ? api_fragment(5, [api_static_fragment($fragment3, 7)], 0)
-              : $cmp.inner.elseif
-              ? api_fragment(5, [api_static_fragment($fragment4, 9)], 0)
-              : $cmp.inner.elseif2
-              ? api_fragment(
-                  5,
-                  [
-                    api_deprecated_dynamic_component(
-                      "x-foo",
-                      $cmp.trackedProp.foo,
-                      stc0
-                    ),
-                  ],
-                  0
-                )
-              : api_fragment(5, [api_static_fragment($fragment5, 12)], 0),
-          ],
-          0
-        )
-      : api_fragment(0, [api_static_fragment($fragment6, 14)], 0),
+        ? api_fragment(0, [api_static_fragment($fragment2, 4)], 0)
+        : $cmp.outer.elseif2
+          ? api_fragment(
+              0,
+              [
+                $cmp.inner.if
+                  ? api_fragment(5, [api_static_fragment($fragment3, 7)], 0)
+                  : $cmp.inner.elseif
+                    ? api_fragment(5, [api_static_fragment($fragment4, 9)], 0)
+                    : $cmp.inner.elseif2
+                      ? api_fragment(
+                          5,
+                          [
+                            api_deprecated_dynamic_component(
+                              "x-foo",
+                              $cmp.trackedProp.foo,
+                              stc0
+                            ),
+                          ],
+                          0
+                        )
+                      : api_fragment(
+                          5,
+                          [api_static_fragment($fragment5, 12)],
+                          0
+                        ),
+              ],
+              0
+            )
+          : api_fragment(0, [api_static_fragment($fragment6, 14)], 0),
   ];
   /*LWC compiler vX.X.X*/
 }
diff --git a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic/if-elseif-else/expected.js b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic/if-elseif-else/expected.js
index 69b1895cf4..ba5537b950 100644
--- a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic/if-elseif-else/expected.js
+++ b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic/if-elseif-else/expected.js
@@ -16,18 +16,18 @@ function tmpl($api, $cmp, $slotset, $ctx) {
     $cmp.visible.if
       ? api_fragment(0, [api_static_fragment($fragment1, 2)], 0)
       : $cmp.visible.elseif
-      ? api_fragment(0, [api_static_fragment($fragment2, 4)], 0)
-      : api_fragment(
-          0,
-          [
-            api_deprecated_dynamic_component(
-              "x-foo",
-              $cmp.trackedProp.foo,
-              stc0
-            ),
-          ],
-          0
-        ),
+        ? api_fragment(0, [api_static_fragment($fragment2, 4)], 0)
+        : api_fragment(
+            0,
+            [
+              api_deprecated_dynamic_component(
+                "x-foo",
+                $cmp.trackedProp.foo,
+                stc0
+              ),
+            ],
+            0
+          ),
   ];
   /*LWC compiler vX.X.X*/
 }
diff --git a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic/if-elseif-multiple/expected.js b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic/if-elseif-multiple/expected.js
index 604097aa74..9d0b3d8900 100644
--- a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic/if-elseif-multiple/expected.js
+++ b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic/if-elseif-multiple/expected.js
@@ -17,20 +17,20 @@ function tmpl($api, $cmp, $slotset, $ctx) {
     $cmp.visible.if
       ? api_fragment(0, [api_static_fragment($fragment1, 2)], 0)
       : $cmp.visible.elseif
-      ? api_fragment(0, [api_static_fragment($fragment2, 4)], 0)
-      : $cmp.visible.elseif2
-      ? api_fragment(
-          0,
-          [
-            api_deprecated_dynamic_component(
-              "x-foo",
-              $cmp.trackedProp.foo,
-              stc0
-            ),
-          ],
-          0
-        )
-      : api_fragment(0, [api_static_fragment($fragment3, 7)], 0),
+        ? api_fragment(0, [api_static_fragment($fragment2, 4)], 0)
+        : $cmp.visible.elseif2
+          ? api_fragment(
+              0,
+              [
+                api_deprecated_dynamic_component(
+                  "x-foo",
+                  $cmp.trackedProp.foo,
+                  stc0
+                ),
+              ],
+              0
+            )
+          : api_fragment(0, [api_static_fragment($fragment3, 7)], 0),
   ];
   /*LWC compiler vX.X.X*/
 }
diff --git a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic/if-elseif/expected.js b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic/if-elseif/expected.js
index 8820fe5543..09fbd1003f 100644
--- a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic/if-elseif/expected.js
+++ b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/dynamic/if-elseif/expected.js
@@ -15,18 +15,18 @@ function tmpl($api, $cmp, $slotset, $ctx) {
     $cmp.visible.if
       ? api_fragment(0, [api_static_fragment($fragment1, 2)], 0)
       : $cmp.visible.elseif
-      ? api_fragment(
-          0,
-          [
-            api_deprecated_dynamic_component(
-              "x-foo",
-              $cmp.trackedProp.foo,
-              stc0
-            ),
-          ],
-          0
-        )
-      : null,
+        ? api_fragment(
+            0,
+            [
+              api_deprecated_dynamic_component(
+                "x-foo",
+                $cmp.trackedProp.foo,
+                stc0
+              ),
+            ],
+            0
+          )
+        : null,
   ];
   /*LWC compiler vX.X.X*/
 }
diff --git a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/if-elseif-else/components/expected.js b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/if-elseif-else/components/expected.js
index 430190ea26..ee221f4991 100644
--- a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/if-elseif-else/components/expected.js
+++ b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/if-elseif-else/components/expected.js
@@ -19,16 +19,16 @@ function tmpl($api, $cmp, $slotset, $ctx) {
     $cmp.visible
       ? api_fragment(0, [api_custom_element("c-custom", _cCustom, stc0)], 0)
       : $cmp.elseif
-      ? api_fragment(
-          0,
-          [api_custom_element("c-custom-elseif", _cCustomElseif, stc1)],
-          0
-        )
-      : api_fragment(
-          0,
-          [api_custom_element("c-custom-else", _cCustomElse, stc2)],
-          0
-        ),
+        ? api_fragment(
+            0,
+            [api_custom_element("c-custom-elseif", _cCustomElseif, stc1)],
+            0
+          )
+        : api_fragment(
+            0,
+            [api_custom_element("c-custom-else", _cCustomElse, stc2)],
+            0
+          ),
   ];
   /*LWC compiler vX.X.X*/
 }
diff --git a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/if-elseif-else/html-elements/expected.js b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/if-elseif-else/html-elements/expected.js
index 82ea813770..c0e40f7f09 100644
--- a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/if-elseif-else/html-elements/expected.js
+++ b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/if-elseif-else/html-elements/expected.js
@@ -10,8 +10,8 @@ function tmpl($api, $cmp, $slotset, $ctx) {
     $cmp.visible
       ? api_fragment(0, [api_static_fragment($fragment1, 2)], 0)
       : $cmp.elseifCondition
-      ? api_fragment(0, [api_static_fragment($fragment2, 4)], 0)
-      : api_fragment(0, [api_static_fragment($fragment3, 6)], 0),
+        ? api_fragment(0, [api_static_fragment($fragment2, 4)], 0)
+        : api_fragment(0, [api_static_fragment($fragment3, 6)], 0),
   ];
   /*LWC compiler vX.X.X*/
 }
diff --git a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/if-elseif-else/template/expected.js b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/if-elseif-else/template/expected.js
index 94a79fb9a7..8ef75f26bd 100644
--- a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/if-elseif-else/template/expected.js
+++ b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/if-elseif-else/template/expected.js
@@ -7,8 +7,8 @@ function tmpl($api, $cmp, $slotset, $ctx) {
     $cmp.visible
       ? api_fragment(0, [api_text("Conditional Text")], 0)
       : $cmp.elseifCondition
-      ? api_fragment(0, [api_text("Elseif!")], 0)
-      : api_fragment(0, [api_text("Else!")], 0),
+        ? api_fragment(0, [api_text("Elseif!")], 0)
+        : api_fragment(0, [api_text("Else!")], 0),
   ];
   /*LWC compiler vX.X.X*/
 }
diff --git a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/if-elseif/components/expected.js b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/if-elseif/components/expected.js
index 4fb9e41e70..a3af2ca6f3 100644
--- a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/if-elseif/components/expected.js
+++ b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/if-elseif/components/expected.js
@@ -22,16 +22,16 @@ function tmpl($api, $cmp, $slotset, $ctx) {
           0
         )
       : $cmp.elseifCondition
-      ? api_fragment(
-          0,
-          [
-            api_custom_element("c-custom", _cCustom, stc1, [
-              api_text("First Alternative Header"),
-            ]),
-          ],
-          0
-        )
-      : null,
+        ? api_fragment(
+            0,
+            [
+              api_custom_element("c-custom", _cCustom, stc1, [
+                api_text("First Alternative Header"),
+              ]),
+            ],
+            0
+          )
+        : null,
   ];
   /*LWC compiler vX.X.X*/
 }
diff --git a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/if-elseif/html-elements/expected.js b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/if-elseif/html-elements/expected.js
index c29e0472a6..5d6e1be62d 100644
--- a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/if-elseif/html-elements/expected.js
+++ b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/if-elseif/html-elements/expected.js
@@ -9,8 +9,8 @@ function tmpl($api, $cmp, $slotset, $ctx) {
     $cmp.visible
       ? api_fragment(0, [api_static_fragment($fragment1, 2)], 0)
       : $cmp.elseifCondition
-      ? api_fragment(0, [api_static_fragment($fragment2, 4)], 0)
-      : null,
+        ? api_fragment(0, [api_static_fragment($fragment2, 4)], 0)
+        : null,
   ];
   /*LWC compiler vX.X.X*/
 }
diff --git a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/if-elseif/template/expected.js b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/if-elseif/template/expected.js
index c9b059d51e..09470cb1bd 100644
--- a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/if-elseif/template/expected.js
+++ b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/if-elseif/template/expected.js
@@ -7,8 +7,8 @@ function tmpl($api, $cmp, $slotset, $ctx) {
     $cmp.visible
       ? api_fragment(0, [api_text("Conditional Text")], 0)
       : $cmp.displayAlt
-      ? api_fragment(0, [api_text("Elseif!")], 0)
-      : null,
+        ? api_fragment(0, [api_text("Elseif!")], 0)
+        : null,
   ];
   /*LWC compiler vX.X.X*/
 }
diff --git a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/mixed-elements/expected.js b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/mixed-elements/expected.js
index 8fdaad2f22..f7ccb63110 100644
--- a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/mixed-elements/expected.js
+++ b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/mixed-elements/expected.js
@@ -17,16 +17,16 @@ function tmpl($api, $cmp, $slotset, $ctx) {
     $cmp.visible
       ? api_fragment(0, [api_text("Conditional Text")], 0)
       : $cmp.elseifCondition
-      ? api_fragment(0, [api_static_fragment($fragment1, 2)], 0)
-      : api_fragment(
-          0,
-          [
-            api_custom_element("c-default", _cDefault, stc0, [
-              api_text("Else!"),
-            ]),
-          ],
-          0
-        ),
+        ? api_fragment(0, [api_static_fragment($fragment1, 2)], 0)
+        : api_fragment(
+            0,
+            [
+              api_custom_element("c-default", _cDefault, stc0, [
+                api_text("Else!"),
+              ]),
+            ],
+            0
+          ),
   ];
   /*LWC compiler vX.X.X*/
 }
diff --git a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/nested/expected.js b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/nested/expected.js
index 49a33c6de8..96588fb60b 100644
--- a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/nested/expected.js
+++ b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/nested/expected.js
@@ -39,69 +39,75 @@ function tmpl($api, $cmp, $slotset, $ctx) {
     $cmp.visible
       ? api_fragment(0, [api_custom_element("c-custom", _cCustom, stc0)], 0)
       : $cmp.elseif
-      ? api_fragment(
-          0,
-          [
-            api_custom_element("c-custom-elseif", _cCustomElseif, stc1, [
-              api_text("If Text"),
-              $cmp.showNestedIf
-                ? api_fragment(
-                    3,
-                    [
-                      api_custom_element("c-nested", _cNested, stc2, [
-                        $cmp.doubleNestedIf
-                          ? api_fragment(
-                              5,
-                              [
-                                api_custom_element(
-                                  "c-double-nested",
-                                  _cDoubleNested,
-                                  stc3
-                                ),
-                              ],
-                              0
-                            )
-                          : api_fragment(
-                              5,
-                              [
-                                api_custom_element(
-                                  "c-double-nested-else",
-                                  _cDoubleNestedElse,
-                                  stc4
-                                ),
-                              ],
-                              0
-                            ),
-                      ]),
-                    ],
-                    0
-                  )
-                : $cmp.elseifNested
-                ? api_fragment(
-                    3,
-                    [
-                      api_custom_element(
-                        "c-nested-elseif",
-                        _cNestedElseif,
-                        stc5
+        ? api_fragment(
+            0,
+            [
+              api_custom_element("c-custom-elseif", _cCustomElseif, stc1, [
+                api_text("If Text"),
+                $cmp.showNestedIf
+                  ? api_fragment(
+                      3,
+                      [
+                        api_custom_element("c-nested", _cNested, stc2, [
+                          $cmp.doubleNestedIf
+                            ? api_fragment(
+                                5,
+                                [
+                                  api_custom_element(
+                                    "c-double-nested",
+                                    _cDoubleNested,
+                                    stc3
+                                  ),
+                                ],
+                                0
+                              )
+                            : api_fragment(
+                                5,
+                                [
+                                  api_custom_element(
+                                    "c-double-nested-else",
+                                    _cDoubleNestedElse,
+                                    stc4
+                                  ),
+                                ],
+                                0
+                              ),
+                        ]),
+                      ],
+                      0
+                    )
+                  : $cmp.elseifNested
+                    ? api_fragment(
+                        3,
+                        [
+                          api_custom_element(
+                            "c-nested-elseif",
+                            _cNestedElseif,
+                            stc5
+                          ),
+                        ],
+                        0
+                      )
+                    : api_fragment(
+                        3,
+                        [
+                          api_custom_element(
+                            "c-nested-else",
+                            _cNestedElse,
+                            stc6
+                          ),
+                        ],
+                        0
                       ),
-                    ],
-                    0
-                  )
-                : api_fragment(
-                    3,
-                    [api_custom_element("c-nested-else", _cNestedElse, stc6)],
-                    0
-                  ),
-            ]),
-          ],
-          0
-        )
-      : api_fragment(
-          0,
-          [api_custom_element("c-custom-else", _cCustomElse, stc7)],
-          0
-        ),
+              ]),
+            ],
+            0
+          )
+        : api_fragment(
+            0,
+            [api_custom_element("c-custom-else", _cCustomElse, stc7)],
+            0
+          ),
   ];
   /*LWC compiler vX.X.X*/
 }
diff --git a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/slots/duplicate-slots-warning/not-in-same-condition-tree/expected.js b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/slots/duplicate-slots-warning/not-in-same-condition-tree/expected.js
index f96c0e4fb0..b34e4f8cd6 100644
--- a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/slots/duplicate-slots-warning/not-in-same-condition-tree/expected.js
+++ b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/slots/duplicate-slots-warning/not-in-same-condition-tree/expected.js
@@ -32,29 +32,29 @@ function tmpl($api, $cmp, $slotset, $ctx) {
     $cmp.condition
       ? api_fragment(0, [api_text("Conditional Text")], 0)
       : $cmp.altCondition
-      ? api_fragment(
-          0,
-          [
-            api_element("div", stc0, [
-              api_slot("outside-slot", stc1, stc2, $slotset),
-            ]),
-          ],
-          0
-        )
-      : api_fragment(0, [api_slot("outside-slot", stc3, stc2, $slotset)], 0),
+        ? api_fragment(
+            0,
+            [
+              api_element("div", stc0, [
+                api_slot("outside-slot", stc1, stc2, $slotset),
+              ]),
+            ],
+            0
+          )
+        : api_fragment(0, [api_slot("outside-slot", stc3, stc2, $slotset)], 0),
     $cmp.anotherCondition
       ? api_fragment(4, [api_text("Another Conditional Text")], 0)
       : $cmp.anotherAltCondition
-      ? api_fragment(
-          4,
-          [
-            api_element("div", stc4, [
-              api_slot("outside-slot", stc5, stc2, $slotset),
-            ]),
-          ],
-          0
-        )
-      : null,
+        ? api_fragment(
+            4,
+            [
+              api_element("div", stc4, [
+                api_slot("outside-slot", stc5, stc2, $slotset),
+              ]),
+            ],
+            0
+          )
+        : null,
   ];
   /*LWC compiler vX.X.X*/
 }
diff --git a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/slots/valid-duplicate-slot-names/complex/expected.js b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/slots/valid-duplicate-slot-names/complex/expected.js
index a8616f7641..4519cc003c 100644
--- a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/slots/valid-duplicate-slot-names/complex/expected.js
+++ b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/slots/valid-duplicate-slot-names/complex/expected.js
@@ -73,39 +73,39 @@ function tmpl($api, $cmp, $slotset, $ctx) {
                     $cmp.doubleNested
                       ? api_fragment(4, [api_text("Double Nested")], 0)
                       : $cmp.doubleNestedAlt
-                      ? api_fragment(
-                          4,
-                          [
-                            $cmp.tripleNested
-                              ? api_fragment(
-                                  5,
-                                  [
-                                    api_element("div", stc3, [
-                                      api_element("div", stc4, [
-                                        api_text("Triple Nested Text"),
-                                        api_slot(
-                                          "nested-slot",
-                                          stc5,
-                                          stc1,
-                                          $slotset
-                                        ),
+                        ? api_fragment(
+                            4,
+                            [
+                              $cmp.tripleNested
+                                ? api_fragment(
+                                    5,
+                                    [
+                                      api_element("div", stc3, [
+                                        api_element("div", stc4, [
+                                          api_text("Triple Nested Text"),
+                                          api_slot(
+                                            "nested-slot",
+                                            stc5,
+                                            stc1,
+                                            $slotset
+                                          ),
+                                        ]),
                                       ]),
-                                    ]),
-                                  ],
-                                  0
-                                )
-                              : null,
-                          ],
-                          0
-                        )
-                      : api_fragment(
-                          4,
-                          [
-                            api_text("Else"),
-                            api_slot("nested-slot", stc6, stc1, $slotset),
-                          ],
-                          0
-                        ),
+                                    ],
+                                    0
+                                  )
+                                : null,
+                            ],
+                            0
+                          )
+                        : api_fragment(
+                            4,
+                            [
+                              api_text("Else"),
+                              api_slot("nested-slot", stc6, stc1, $slotset),
+                            ],
+                            0
+                          ),
                   ],
                   0
                 ),
diff --git a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/static-content-optimization/expected.js b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/static-content-optimization/expected.js
index ea1b5bff03..e2184d8ca2 100644
--- a/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/static-content-optimization/expected.js
+++ b/packages/@lwc/template-compiler/src/__tests__/fixtures/directive-lwc-if-else/static-content-optimization/expected.js
@@ -45,56 +45,56 @@ function tmpl($api, $cmp, $slotset, $ctx) {
           0
         )
       : $cmp.showElseIf
-      ? api_fragment(
-          0,
-          [
-            api_static_fragment($fragment4, 8, [
-              api_static_part(
-                0,
-                {
-                  attrs: {
-                    "data-dynamic": $cmp.insideElseIf,
+        ? api_fragment(
+            0,
+            [
+              api_static_fragment($fragment4, 8, [
+                api_static_part(
+                  0,
+                  {
+                    attrs: {
+                      "data-dynamic": $cmp.insideElseIf,
+                    },
                   },
-                },
-                null
-              ),
-            ]),
-            api_static_fragment($fragment5, 10),
-            api_static_fragment($fragment6, 12, [
-              api_static_part(
-                1,
-                null,
-                "concatenated " + api_dynamic_text($cmp.insideElseIf)
-              ),
-            ]),
-          ],
-          0
-        )
-      : api_fragment(
-          0,
-          [
-            api_static_fragment($fragment7, 14, [
-              api_static_part(
-                0,
-                {
-                  attrs: {
-                    "data-dynamic": $cmp.insideElse,
+                  null
+                ),
+              ]),
+              api_static_fragment($fragment5, 10),
+              api_static_fragment($fragment6, 12, [
+                api_static_part(
+                  1,
+                  null,
+                  "concatenated " + api_dynamic_text($cmp.insideElseIf)
+                ),
+              ]),
+            ],
+            0
+          )
+        : api_fragment(
+            0,
+            [
+              api_static_fragment($fragment7, 14, [
+                api_static_part(
+                  0,
+                  {
+                    attrs: {
+                      "data-dynamic": $cmp.insideElse,
+                    },
                   },
-                },
-                null
-              ),
-            ]),
-            api_static_fragment($fragment8, 16),
-            api_static_fragment($fragment9, 18, [
-              api_static_part(
-                1,
-                null,
-                "concatenated " + api_dynamic_text($cmp.insideElse)
-              ),
-            ]),
-          ],
-          0
-        ),
+                  null
+                ),
+              ]),
+              api_static_fragment($fragment8, 16),
+              api_static_fragment($fragment9, 18, [
+                api_static_part(
+                  1,
+                  null,
+                  "concatenated " + api_dynamic_text($cmp.insideElse)
+                ),
+              ]),
+            ],
+            0
+          ),
   ];
   /*LWC compiler vX.X.X*/
 }
diff --git a/packages/@lwc/template-compiler/src/__tests__/fixtures/scoped-slots/if-block/valid/mixed-slot-types/expected.js b/packages/@lwc/template-compiler/src/__tests__/fixtures/scoped-slots/if-block/valid/mixed-slot-types/expected.js
index 37d1658713..9200e6922e 100644
--- a/packages/@lwc/template-compiler/src/__tests__/fixtures/scoped-slots/if-block/valid/mixed-slot-types/expected.js
+++ b/packages/@lwc/template-compiler/src/__tests__/fixtures/scoped-slots/if-block/valid/mixed-slot-types/expected.js
@@ -17,23 +17,23 @@ function tmpl($api, $cmp, $slotset, $ctx) {
     $cmp.showStandard
       ? api_fragment(0, [api_slot("slotname1", stc0, stc1, $slotset)], 0)
       : $cmp.showVariant
-      ? api_fragment(
-          0,
-          [
-            api_slot(
-              "slotname1",
-              {
-                attrs: stc2,
-                key: 2,
-                slotData: $cmp.slot1VariantData,
-              },
-              stc1,
-              $slotset
-            ),
-          ],
-          0
-        )
-      : null,
+        ? api_fragment(
+            0,
+            [
+              api_slot(
+                "slotname1",
+                {
+                  attrs: stc2,
+                  key: 2,
+                  slotData: $cmp.slot1VariantData,
+                },
+                stc1,
+                $slotset
+              ),
+            ],
+            0
+          )
+        : null,
   ];
   /*LWC compiler vX.X.X*/
 }
diff --git a/packages/@lwc/template-compiler/src/__tests__/fixtures/scoped-slots/if-block/valid/same-slot-types/expected.js b/packages/@lwc/template-compiler/src/__tests__/fixtures/scoped-slots/if-block/valid/same-slot-types/expected.js
index 857a72d76d..7140a9c466 100644
--- a/packages/@lwc/template-compiler/src/__tests__/fixtures/scoped-slots/if-block/valid/same-slot-types/expected.js
+++ b/packages/@lwc/template-compiler/src/__tests__/fixtures/scoped-slots/if-block/valid/same-slot-types/expected.js
@@ -26,23 +26,23 @@ function tmpl($api, $cmp, $slotset, $ctx) {
           0
         )
       : $cmp.showVariant
-      ? api_fragment(
-          0,
-          [
-            api_slot(
-              "slotname1",
-              {
-                attrs: stc0,
-                key: 2,
-                slotData: $cmp.slot1VariantData,
-              },
-              stc1,
-              $slotset
-            ),
-          ],
-          0
-        )
-      : null,
+        ? api_fragment(
+            0,
+            [
+              api_slot(
+                "slotname1",
+                {
+                  attrs: stc0,
+                  key: 2,
+                  slotData: $cmp.slot1VariantData,
+                },
+                stc1,
+                $slotset
+              ),
+            ],
+            0
+          )
+        : null,
   ];
   /*LWC compiler vX.X.X*/
 }
diff --git a/packages/@lwc/template-compiler/src/__tests__/fixtures/scoped-slots/slot-content-with-directives/valid/if-block/expected.js b/packages/@lwc/template-compiler/src/__tests__/fixtures/scoped-slots/slot-content-with-directives/valid/if-block/expected.js
index 22d8bdd610..c11bb8eac9 100644
--- a/packages/@lwc/template-compiler/src/__tests__/fixtures/scoped-slots/slot-content-with-directives/valid/if-block/expected.js
+++ b/packages/@lwc/template-compiler/src/__tests__/fixtures/scoped-slots/slot-content-with-directives/valid/if-block/expected.js
@@ -51,18 +51,18 @@ function tmpl($api, $cmp, $slotset, $ctx) {
                   0
                 )
               : variations.variation2
-              ? api_fragment(
-                  1,
-                  [api_custom_element("x-counter", _xCounter, stc2)],
-                  0
-                )
-              : variations.variation2
-              ? api_fragment(
-                  1,
-                  [api_custom_element("x-counter", _xCounter, stc3)],
-                  0
-                )
-              : null,
+                ? api_fragment(
+                    1,
+                    [api_custom_element("x-counter", _xCounter, stc2)],
+                    0
+                  )
+                : variations.variation2
+                  ? api_fragment(
+                      1,
+                      [api_custom_element("x-counter", _xCounter, stc3)],
+                      0
+                    )
+                  : null,
           ],
           0
         );
@@ -82,16 +82,16 @@ function tmpl($api, $cmp, $slotset, $ctx) {
                   0
                 )
               : variations.variation2
-              ? api_fragment(
-                  5,
-                  [api_custom_element("x-button2", _xButton2, stc5)],
-                  0
-                )
-              : api_fragment(
-                  5,
-                  [api_custom_element("x-button3", _xButton3, stc6)],
-                  0
-                ),
+                ? api_fragment(
+                    5,
+                    [api_custom_element("x-button2", _xButton2, stc5)],
+                    0
+                  )
+                : api_fragment(
+                    5,
+                    [api_custom_element("x-button3", _xButton3, stc6)],
+                    0
+                  ),
           ],
           0
         );
diff --git a/packages/@lwc/template-compiler/src/__tests__/fixtures/static-content/text/else/expected.js b/packages/@lwc/template-compiler/src/__tests__/fixtures/static-content/text/else/expected.js
index 4b469ca77d..6677af4e31 100644
--- a/packages/@lwc/template-compiler/src/__tests__/fixtures/static-content/text/else/expected.js
+++ b/packages/@lwc/template-compiler/src/__tests__/fixtures/static-content/text/else/expected.js
@@ -57,72 +57,72 @@ function tmpl($api, $cmp, $slotset, $ctx) {
           0
         )
       : $cmp.showElseIf
-      ? api_fragment(
-          0,
-          [
-            api_text(api_dynamic_text($cmp.firstOutterSiblingLwcElseIf)),
-            api_static_fragment($fragment5, 10, [
-              api_static_part(1, null, api_dynamic_text($cmp.solo)),
-            ]),
-            api_static_fragment($fragment6, 12, [
-              api_static_part(
-                1,
-                null,
-                api_dynamic_text($cmp.firstInnerSiblingLwcElseIf)
-              ),
-            ]),
-            api_text(api_dynamic_text($cmp.centerOutterSiblingLwcElseIf)),
-            api_static_fragment($fragment7, 14, [
-              api_static_part(
-                3,
-                null,
-                api_dynamic_text($cmp.secondInnerSiblingLwcElseIf)
-              ),
-            ]),
-            api_static_fragment($fragment8, 16, [
-              api_static_part(
-                3,
-                null,
-                api_dynamic_text($cmp.middleInnerSiblingLwcElseIf)
-              ),
-            ]),
-            api_text(api_dynamic_text($cmp.lastOutterSiblingLwcElseIf)),
-          ],
-          0
-        )
-      : api_fragment(
-          0,
-          [
-            api_text(api_dynamic_text($cmp.firstOutterSiblingLwcElse)),
-            api_static_fragment($fragment9, 18, [
-              api_static_part(1, null, api_dynamic_text($cmp.solo)),
-            ]),
-            api_static_fragment($fragment10, 20, [
-              api_static_part(
-                1,
-                null,
-                api_dynamic_text($cmp.firstInnerSiblingLwcElse)
-              ),
-            ]),
-            api_text(api_dynamic_text($cmp.centerOutterSiblingLwcElse)),
-            api_static_fragment($fragment11, 22, [
-              api_static_part(
-                3,
-                null,
-                api_dynamic_text($cmp.secondInnerSiblingLwcElse)
-              ),
-            ]),
-            api_static_fragment($fragment12, 24, [
-              api_static_part(
-                3,
-                null,
-                api_dynamic_text($cmp.middleInnerSiblingLwcElse)
-              ),
-            ]),
-            api_text(api_dynamic_text($cmp.lastOutterSiblingLwcElse)),
-          ],
-          0
-        ),
+        ? api_fragment(
+            0,
+            [
+              api_text(api_dynamic_text($cmp.firstOutterSiblingLwcElseIf)),
+              api_static_fragment($fragment5, 10, [
+                api_static_part(1, null, api_dynamic_text($cmp.solo)),
+              ]),
+              api_static_fragment($fragment6, 12, [
+                api_static_part(
+                  1,
+                  null,
+                  api_dynamic_text($cmp.firstInnerSiblingLwcElseIf)
+                ),
+              ]),
+              api_text(api_dynamic_text($cmp.centerOutterSiblingLwcElseIf)),
+              api_static_fragment($fragment7, 14, [
+                api_static_part(
+                  3,
+                  null,
+                  api_dynamic_text($cmp.secondInnerSiblingLwcElseIf)
+                ),
+              ]),
+              api_static_fragment($fragment8, 16, [
+                api_static_part(
+                  3,
+                  null,
+                  api_dynamic_text($cmp.middleInnerSiblingLwcElseIf)
+                ),
+              ]),
+              api_text(api_dynamic_text($cmp.lastOutterSiblingLwcElseIf)),
+            ],
+            0
+          )
+        : api_fragment(
+            0,
+            [
+              api_text(api_dynamic_text($cmp.firstOutterSiblingLwcElse)),
+              api_static_fragment($fragment9, 18, [
+                api_static_part(1, null, api_dynamic_text($cmp.solo)),
+              ]),
+              api_static_fragment($fragment10, 20, [
+                api_static_part(
+                  1,
+                  null,
+                  api_dynamic_text($cmp.firstInnerSiblingLwcElse)
+                ),
+              ]),
+              api_text(api_dynamic_text($cmp.centerOutterSiblingLwcElse)),
+              api_static_fragment($fragment11, 22, [
+                api_static_part(
+                  3,
+                  null,
+                  api_dynamic_text($cmp.secondInnerSiblingLwcElse)
+                ),
+              ]),
+              api_static_fragment($fragment12, 24, [
+                api_static_part(
+                  3,
+                  null,
+                  api_dynamic_text($cmp.middleInnerSiblingLwcElse)
+                ),
+              ]),
+              api_text(api_dynamic_text($cmp.lastOutterSiblingLwcElse)),
+            ],
+            0
+          ),
   ];
   /*LWC compiler vX.X.X*/
 }
diff --git a/packages/@lwc/template-compiler/src/__tests__/fixtures/static-content/text/elseif/expected.js b/packages/@lwc/template-compiler/src/__tests__/fixtures/static-content/text/elseif/expected.js
index 8523b0395d..51bcb44eb2 100644
--- a/packages/@lwc/template-compiler/src/__tests__/fixtures/static-content/text/elseif/expected.js
+++ b/packages/@lwc/template-compiler/src/__tests__/fixtures/static-content/text/elseif/expected.js
@@ -53,40 +53,40 @@ function tmpl($api, $cmp, $slotset, $ctx) {
           0
         )
       : $cmp.showElseIf
-      ? api_fragment(
-          0,
-          [
-            api_text(api_dynamic_text($cmp.firstOutterSiblingLwcElseIf)),
-            api_static_fragment($fragment5, 10, [
-              api_static_part(1, null, api_dynamic_text($cmp.solo)),
-            ]),
-            api_static_fragment($fragment6, 12, [
-              api_static_part(
-                1,
-                null,
-                api_dynamic_text($cmp.firstInnerSiblingLwcElseIf)
-              ),
-            ]),
-            api_text(api_dynamic_text($cmp.centerOutterSiblingLwcElseIf)),
-            api_static_fragment($fragment7, 14, [
-              api_static_part(
-                3,
-                null,
-                api_dynamic_text($cmp.secondInnerSiblingLwcElseIf)
-              ),
-            ]),
-            api_static_fragment($fragment8, 16, [
-              api_static_part(
-                3,
-                null,
-                api_dynamic_text($cmp.middleInnerSiblingLwcElseIf)
-              ),
-            ]),
-            api_text(api_dynamic_text($cmp.lastOutterSiblingLwcElseIf)),
-          ],
-          0
-        )
-      : null,
+        ? api_fragment(
+            0,
+            [
+              api_text(api_dynamic_text($cmp.firstOutterSiblingLwcElseIf)),
+              api_static_fragment($fragment5, 10, [
+                api_static_part(1, null, api_dynamic_text($cmp.solo)),
+              ]),
+              api_static_fragment($fragment6, 12, [
+                api_static_part(
+                  1,
+                  null,
+                  api_dynamic_text($cmp.firstInnerSiblingLwcElseIf)
+                ),
+              ]),
+              api_text(api_dynamic_text($cmp.centerOutterSiblingLwcElseIf)),
+              api_static_fragment($fragment7, 14, [
+                api_static_part(
+                  3,
+                  null,
+                  api_dynamic_text($cmp.secondInnerSiblingLwcElseIf)
+                ),
+              ]),
+              api_static_fragment($fragment8, 16, [
+                api_static_part(
+                  3,
+                  null,
+                  api_dynamic_text($cmp.middleInnerSiblingLwcElseIf)
+                ),
+              ]),
+              api_text(api_dynamic_text($cmp.lastOutterSiblingLwcElseIf)),
+            ],
+            0
+          )
+        : null,
   ];
   /*LWC compiler vX.X.X*/
 }
diff --git a/packages/@lwc/template-compiler/src/parser/index.ts b/packages/@lwc/template-compiler/src/parser/index.ts
index 8607a41475..dd30ab02b9 100644
--- a/packages/@lwc/template-compiler/src/parser/index.ts
+++ b/packages/@lwc/template-compiler/src/parser/index.ts
@@ -564,7 +564,7 @@ function getTemplateRoot(
         ctx.throw(
             ParserDiagnostics.MULTIPLE_ROOTS_FOUND,
             [],
-            duplicateRoot ? ast.sourceLocation(duplicateRoot) : duplicateRoot ?? undefined
+            duplicateRoot ? ast.sourceLocation(duplicateRoot) : (duplicateRoot ?? undefined)
         );
     }
 
diff --git a/packages/@lwc/template-compiler/src/shared/types.ts b/packages/@lwc/template-compiler/src/shared/types.ts
index a58ea87624..2f5adc17e8 100644
--- a/packages/@lwc/template-compiler/src/shared/types.ts
+++ b/packages/@lwc/template-compiler/src/shared/types.ts
@@ -89,7 +89,7 @@ export interface EventListener extends BaseNode {
 }
 
 export interface Directive<
-    T extends keyof typeof ElementDirectiveName | keyof typeof RootDirectiveName
+    T extends keyof typeof ElementDirectiveName | keyof typeof RootDirectiveName,
 > extends BaseNode {
     type: 'Directive';
     name: T;
diff --git a/scripts/tasks/generate-license-files.js b/scripts/tasks/generate-license-files.js
index e042d6769d..920c1c1bd8 100644
--- a/scripts/tasks/generate-license-files.js
+++ b/scripts/tasks/generate-license-files.js
@@ -60,8 +60,7 @@ async function main() {
             '\n'
         )}`.trim() + '\n';
 
-    // TODO [#4386]: Prettier v3 returns a promise - add an `await` here
-    const formattedLicense = prettier.format(newLicense, {
+    const formattedLicense = await prettier.format(newLicense, {
         parser: 'markdown',
     });
 
diff --git a/yarn.lock b/yarn.lock
index f6e733551b..7b5ed01c39 100644
--- a/yarn.lock
+++ b/yarn.lock
@@ -1015,9 +1015,11 @@
 
 "@lwc/eslint-plugin-lwc-internal@link:./scripts/eslint-plugin":
   version "0.0.0"
+  uid ""
 
 "@lwc/test-utils-lwc-internals@link:./scripts/test-utils":
   version "0.0.0"
+  uid ""
 
 "@napi-rs/wasm-runtime@0.2.4":
   version "0.2.4"
@@ -1749,11 +1751,6 @@
   resolved "https://registry.yarnpkg.com/@types/parse5/-/parse5-5.0.3.tgz#e7b5aebbac150f8b5fdd4a46e7f0bd8e65e19109"
   integrity sha512-kUNnecmtkunAoQ3CnjmMkzNU/gtxG8guhi+Fk2U/kOpIKjIMKnXGp4IJCgQJrXSgMsWYimYG4TGjz/UzbGEBTw==
 
-"@types/prettier@^2.7.3":
-  version "2.7.3"
-  resolved "https://registry.yarnpkg.com/@types/prettier/-/prettier-2.7.3.tgz#3e51a17e291d01d17d3fc61422015a933af7a08f"
-  integrity sha512-+68kP9yzs4LMp7VNh8gdzMSPZFL44MLGqiHWvttYJe+6qnuVr4Ek9wSBQoveqY/r+LwjCcU29kNVkidwim+kYA==
-
 "@types/resolve@1.20.2":
   version "1.20.2"
   resolved "https://registry.yarnpkg.com/@types/resolve/-/resolve-1.20.2.tgz#97d26e00cd4a0423b4af620abecf3e6f442b7975"
@@ -8772,10 +8769,10 @@ prettier@2.8.1:
   resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.8.1.tgz#4e1fd11c34e2421bc1da9aea9bd8127cd0a35efc"
   integrity sha512-lqGoSJBQNJidqCHE80vqZJHWHRFoNYsSpP9AjFhlhi9ODCJA541svILes/+/1GM3VaL/abZi7cpFzOpdR9UPKg==
 
-prettier@^2.8.8:
-  version "2.8.8"
-  resolved "https://registry.yarnpkg.com/prettier/-/prettier-2.8.8.tgz#e8c5d7e98a4305ffe3de2e1fc4aca1a71c28b1da"
-  integrity sha512-tdN8qQGvNjw4CHbY+XXk0JgCXn9QiF21a55rBe5LJAU+kDyC4WQn4+awm2Xfk2lQMk5fKup9XgzTZtGkjBdP9Q==
+prettier@^3.3.3:
+  version "3.3.3"
+  resolved "https://registry.yarnpkg.com/prettier/-/prettier-3.3.3.tgz#30c54fe0be0d8d12e6ae61dbb10109ea00d53105"
+  integrity sha512-i2tDNA0O5IrMO757lfrdQZCc2jPNDVntV0m/+4whiDfWaTKfMNgR7Qz0NAeGz/nRqF4m5/6CLzbP4/liHt12Ew==
 
 pretty-format@^29.7.0:
   version "29.7.0"