As F32 is going end-of-life, and having skipped F33 because of
apparent compatibility issues with the Fedora KDE Spin, I tried a
clean install of Fedora 34.
Booting from a USB of Fedora-KDE-Live-x86_64-34-1.2.iso my
computer just hangs at the point it tries to start the desktop. I
get a black screen with a mouse cursor. Moving the mouse does not
move the cursor, the keyboard is unresponsive, the only way out I
have found is to power cycle the machine. I tried several times
before giving up, settling for upgrading my existing F32
installation with DNF
dnf system-upgrade download --releasever=34 --allowerasing
dnf system-upgrade reboot
That has worked as expected, although the filesystem is still ext4
of course, not the new BTRFS.