The same freeze happened again today, after a two week period of not seeing the problem any more. This is reaching the point where it's becoming outright ridiculous: I've used openSUSE for years, and have never seen such a thing spanning over such a long time period. Unfortunately I can't risk breaking my system by installing custom versions of llvm or the system wide Mesa. I can only hope the developers know what to bisect to find out where this fault lies, based on the logs I've attached here. Let me know if there is more info I could somehow help with.