Originally Posted by
conite You still haven't said what this new fork of AOSP will do that LineageOS, or GrapheneOS can't or won't.
F-Droid (and other stores) already exist. Having a PayPal button in your own app is utterly trivial. Developers don't really care for more options because they're happy already - as are customers.
As you have acknowledged the Android alternatives have not been successful.
The idea is to create a common source platform which developers can develop for. Sailfish, for example, uses Qt, but it also supports an older release of Android and, I suspect, does not support the UX provided through Qt. Other platforms should be supported with their own user experiences.
The idea is to create an API that would allow developers to support various user experiences with minimal or any changes to their code due to the commonality of the Android runtime underneath. The intention is that an app store would fund the development of the underlying code and APIes (freee use) to fund this. The goal is to also change the existing dynamics of the marketplace. So, it should be possible to have apps from the store running Google free (as much as they can) on Android (TM'd) devices as well.