just thought I would add to the mix, here is my take on a bubble play store release, complete with service workers, full firebase reference from cloud messaging, AdMob, fully compliant SHA-1 Fingerprints, Both storage & live database added, Firebase authentication with options to switch on email/phone/google/facebook/twitter/GitHub or anon and the flick of a switch - I built a firebase plugin to bring bubble and firebase in line no matter what directions a signup or login comes from, Also sign in quota and multiple address (freebie hoarder) detection thanks to firebase, native push notifications, crash reporting, cloud functions, remote parameters & dynamic linking.
I built it in android studio (canary)
and its now on Google Play
live location & event view.
Individual live user snapshot viewer.
It was a fun little project to play with and to be honest if someone with no code experience was to go down this road, they would see the other side. maybe a keyboard and possibly a monitor or two down, but they would get there.