UPDATE (Recommended by @Fabio Turati)
Just uninstalling the older one without the (USER) extension, it seems working. If not, then uninstall the one left and reinstall vscode.
additional reading:
You installed the new one (with USER extension) before uninstalling the older one. So now you have both, and this is why you get that message. You need to uninstall them both, then reinstall vs code. Make sure you add a shortcut on desktop, it took me a few more minutes to find the .exe of vs code. No worries you don't lose anything by uninstalling...
cheers !
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