No one complains about ios/android requiring a login.

It does ask you to provide a Google account (on Android), but you can just skip that step. You can’t use the PlayStore to download apps, but that’s about it. Everything else Google works, even updates, you just browse everything as anonymous (well… more or less).

You can with Aurora Store which you install via F-Droid.

Install apps you mean?

aurora store lets you install stuff from the play store without an account