I'm still on cosmic on standard fedora and recently switched to beta. I haven't had many issues, and TBH the muscle memory has kicked in so maybe I'm forgetting something.
What has been fixed: Opening a video now properly focuses so keyboard shortcuts work, in alpha I had to do win+shift+arrow to move the window before it focused to the point that they worked. The file manager now appears to handle sshfs mounts where before I resorted to nautilus. The file manager also now handles a fileshare USB mount with my android phone, before I resorted to nautilus.
Still buggy: When you scroll the file manager below the files on screen, the focused file is one too low so you can't see it and have to go one past then back up.
New issue: The titlebar of a video is now multiline if the filename is large enough, which does not fit the bar
Anything not mentioned "just works" I guess, YMMV. It's snappy and low memory footprint and hasn't crashed, and while I'm not using tiling as such there's keyboard shortcuts to snap windows to quarter/half/full locations which is good enough for me.