Apparently a trigger or scriptlet is somehow causing my user to be kicked out. I was thinking the SDDM was being restarted but “systemctl status sddm” shows a start time that doesn’t point to the time I was kicked out. So the KDE isn’t being killed off due to a SDDM restart.
I eventually got wireplumber upgraded by doing it logged out of KDE and from a virtual console (tty4).
I’m not on the list, anyway I suspect if it’s as annoying as I’ve found (crashing you out of the desktop the instant you do a dnf upgrade of wireplumber and likely pipewire), it’s going to be “discovered” as a problem so many times it won’t matter
Beware that you are running code that has only just started to be stabilised. You are likely to run into many issues that will be fixed before beta. But to help get bugs found and fixed the testing list is a good place to contribute. Repots here may well not get to the right people.