Fedora Linux 35 Released As Another Exciting, Feature-Packed Update

[mppix]

That's weird... have you tried booting a live version? Just to check if you get the same result...
If not, you can also clean up your install by following the instructions in the official documentation (linked below).
Also have you got Nvidia hardware? There's been some trouble with the upgrade process and Nvidia proprietary drivers, you may want to check if you're running nouveau drivers instead of Nvidia.

I just reinstalled. Things work well now and F35 looks very polished!!
(just the system upgrade left my system in a state that was not salvageable).

BTW, any chance Fedora will pick up systemd-homed by default?