Yesterday I upgraded to F31 after doing a backup. The upgrade was quick and smooth.
So of the minor details: I was running Postgresql 11 which as upgraded to 12. PostGIS 3.0 was installed but I still needed to manually run in psql "ALTER EXTENSION postgis UPDATE;" and "ALTER EXTENSION postgis_topology UPDATE;" to complete the upgrade.
Gnome 3.34.1 seems faster but I don't have any data to back that up. I'm still experiencing periods where Gnome screen hangs even though the mouse and keyboard inputs are still being recognized. Not sure what is causing - it's just a minor annoyance.
Switching from python2 to python3 affected just one of my shell scripts. For right now, I just changed from python <script.py> to python2 <script.py> Later I'll upgrade the script to version 3.
In F30 I was running a gnome extension Dock or Dash to Dock. (I can't remember which) Dock remains as an extension but doesn't work so gnome is the default configuration. I miss having the application icons on the bottom of my screen.
Best, Clifford