Is google lens still available? That's perhaps the only cloud feature I sometimes use, in order to translate Chinese text to English or similar.
Also is it possible to undo (in case there's something I don't like?) Is it just a matter of adding the app back to your account?
I switched back and forth between "with account"/"without account" a few times now and it seems to work just fine. I stay with the no-account state, as it not only removes the nags, the interface is actually much cleaner and more logical
No idea about Lens, because I never used it. Aren't there webapps or web services for everything these days? I do everything that I do only occasionally via webapps. Barcode parsing for example.