diff --git a/src/vs/base/browser/dom.ts b/src/vs/base/browser/dom.ts
index 0dabbd4a499..7790ec09c9c 100644
--- a/src/vs/base/browser/dom.ts
+++ b/src/vs/base/browser/dom.ts
@@ -46,13 +46,6 @@ export function clearNode(node: HTMLElement): void {
 	}
 }
 
-/**
- * @deprecated Use node.isConnected directly
- */
-export function isInDOM(node: Node | null): boolean {
-	return node?.isConnected ?? false;
-}
-
 class DomListener implements IDisposable {
 
 	private _handler: (e: any) => void;
diff --git a/src/vs/editor/browser/controller/textAreaInput.ts b/src/vs/editor/browser/controller/textAreaInput.ts
index 929df3c5d84..f548b74c04f 100644
--- a/src/vs/editor/browser/controller/textAreaInput.ts
+++ b/src/vs/editor/browser/controller/textAreaInput.ts
@@ -730,7 +730,7 @@ export class TextAreaWrapper extends Disposable implements ICompleteTextAreaWrap
 		const shadowRoot = dom.getShadowRoot(this._actual);
 		if (shadowRoot) {
 			return shadowRoot.activeElement === this._actual;
-		} else if (dom.isInDOM(this._actual)) {
+		} else if (this._actual.isConnected) {
 			return this._actual.ownerDocument.activeElement === this._actual;
 		} else {
 			return false;
diff --git a/src/vs/editor/browser/view.ts b/src/vs/editor/browser/view.ts
index 0e791b14305..ff4b7514f27 100644
--- a/src/vs/editor/browser/view.ts
+++ b/src/vs/editor/browser/view.ts
@@ -457,7 +457,7 @@ export class View extends ViewEventHandler {
 	}
 
 	private _actualRender(): void {
-		if (!dom.isInDOM(this.domNode.domNode)) {
+		if (!this.domNode.domNode.isConnected) {
 			return;
 		}
 
diff --git a/src/vs/editor/contrib/find/browser/findWidget.ts b/src/vs/editor/contrib/find/browser/findWidget.ts
index a7dd879a53e..7f675f67e9d 100644
--- a/src/vs/editor/contrib/find/browser/findWidget.ts
+++ b/src/vs/editor/contrib/find/browser/findWidget.ts
@@ -681,7 +681,7 @@ export class FindWidget extends Widget implements IOverlayWidget, IVerticalSashL
 		if (!this._isVisible) {
 			return;
 		}
-		if (!dom.isInDOM(this._domNode)) {
+		if (!this._domNode.isConnected) {
 			// the widget is not in the DOM
 			return;
 		}