My APK is too big, Do we have solution now or still you are working on this concern?

1

This is the only point I am stucked before I publish onto Play store.

Also, do you have something like R8 or Proguard which also help to reduce APK size and increase App protection from reverse engineers?

2

https://docs.appgyver.com/docs/android-builds?highlight=big
To understand why your android app is too big, read this
And you have to download .aab file to publish to Play Store