I used Ubuntu back when it ran gnome 2, then Arch Linux for servers and my netbook and since 2017 I’m using Fedora as my daily driver and Rocky Linux for servers. I suppose XenServer/xcp-ng is technically also a Linux distribution that I use. AMA?
I just disable all windows decorations, it’s a solution :)
I’d remove rpmfusion and it’s packages, upgrade, and reinstall them. No idea what’s the particular issue with the 404, could be old mirrorlist, transient issues, but in general if you asked Fedora they’d tell you they only support upgrading with official repos on.
Which is fine really. You’re not losing anything.
Naw, just 3 and 3/4.