If IntelliSense is not working as it should on your Windows 11/10 PC, you can try restarting VS Code and this should solve the issue. Restarting the program can be really effective and time saving ...

IntelliSense is available for JavaScript, TypeScript, JSON, HTML, CSS, SCSS and Less. IntelliSense can now also be used in the web version of the editor, vscode.dev, for JavaScript and TypeScript.