Since someone closed the other thread on this topic, for a reason that seems due to some of the packages not being from the repos, I will make my own thread.
Lutris games do not work, Steam games do not work. Lutris from the repo, and steam runtime installed from the repo. Some launch and freeze, some do not launch at all. I am on KDE plasma/nvidia, but I have seen someone else on Gnome/nvidia mention this issue as well.
Reverting my system made it so that the games work again. On platforms from both in and out of the repo.
Actually it was someone else’s thread, this OP just said they had the same problem and that they fixed it by reverting to a backup. So pretty much what they said here.
Not sure Feedback is the right place either, but I don’t think we’ve got a “Random Statement” category.