I do not believe there is any built-in method for syncing between code-server and VS Code. You could try Microsoft's web server instead of our code-server (it can be ran with code serve-web), then you should be able to use the built-in settings sync.

But if that is not an option, then I think the only way is to manually sync the user data directory, for example by using rsync over ssh.

I'm not entirely sure how this happened, but it worked for me.

Screenshot 2024年09月22日 at 10 08 30 PM

I zipped all my local VSCode extensions (~/.vscode/extensions), SCPed them to the Docker-mounted config, and reloaded Code-Server. It resolved the issue.