[Mk2000]

But those "alternatives app stores" can never do the things Play Store can, like automatic installing/updating apps without user needing to click "Install" for each one. (which gets quite annoying)

Google could've made it possible but did not, that's monopoly.

[akvadrako]

They can with new versions of Android:

https://www.xda-developers.com/android-12-alternative-app-st...

[anonymousab]

What percentage of Android phones out there will be able to install and run Android 12 without needing to be hacked?