I'm on this path too. Waiting a few more months to see what happens. If they indeed block my 4 apps on my phone (which aren't published anywhere), I will simply move to Apple.
Will your 4 unpublished apps be in your android-alternative apple device?
Android will still have the ability to install non-google-distributed programs. The problem is the ominous momentum, but it is still more open than the apple alternative
You should switch to GrapheneOS instead.