I guess F-Droid is limited in the sense of low user awareness? Similar to lemmy in the sense that its just not that popular atm, but maybe its gaining popularity?

I used to on my Motorola RAZR for custom themes and the ability to double tap volume keys for track skipping or rewind. Now I have an app to to do that and some watered down system themes. Now I just don’t cause I don’t see the reason for rooting anymore. And random apps like McDonald’s have started checking for root or unlocked bootloader’s for some reason.

Sorry that this isn’t an answer but your post reminded me of zenoina (1st one) and it was a nice $1-2 mmo on Android. Sadly they just pumped out sequels and I don’t know if they are still good or terrible now.