That's not a lot of progress? Multiple people have had their go, and their results are available for free. Man sometimes I get frustrated with open source.
I understand that shipping an Android app to the Play Store requires an App Bundle <https://developer.android.com/guide/app-bundle/> But APKs are not obsolete, how else can you share what your creations among friends? And besides I don't think it's much work to port any of the existing projects to App Bundles. It just needs someone with dedication. To quote @raysan5: In my life experience one thing I learned is that waiting for others to do things for you is usually a bad idea specially if you expect it to be done for free
