spacecicada As far as I know, most if not all of the issues have been ironed out, so your issue with constant crashes is unique. Did you remove Google Services Framework from an existing install after upgrading to Android 15?
It sounds like the crashes are from Google Play. It may be best to uninstall all three apps (Google Play, Google Play Services, and Google Services Framework) and install them again. If you do that, you may have to clear the storage of other apps or reinstall them so that they can work with Google Play again (for example, Signal/Molly for notifications). That's what I'd do if I were in your situation, but maybe someone here might have a better, less annoying suggestion?