I despise how the idiots at google and apple can't live without randomly permuting the android, gsuite, ios, and macos UIs all the time.
There is a pending android 9 update on my phone, and ios 12 on my ipad. Not today, Satan, not today!
So that's who actually receives updates to Android. The one dude who doesn't appreciate them.
That being said, Google's org is pretty fluid, there should be plenty of new projects in need of UX that you don't have to mess with old projects.
Doesn't help that the recommender algorithm seems to surface completely random 8 year old videos in the "recommended" feed now
The most visible change might be notifications, which are grouped by app and added a convenient option to revoke something’s notification privileges without digging through Settings.
It. Just. Works.