Thanks! I'll check those, but the main problem seems to be related to GPU, please see below
- Were any new applications or hardware components installed recently?
Yes, it's hard to track which ones.
- If you have Windows or Linux on this system, do they also crash after a few minutes?
Nope, I have Windows it works perfectly
- If you boot macOS in safe mode (hold shift key down when selecting macOS disk in OpenCore boot picker), does it still crash?
If I boot macOS into another fresh user it won't crash! Now I suspect it's some kind of startup process related to the main user. But I checked ~/Library/LaunchAgents and removed everything, it still crashes
- Does macOS only crash if a particular application is running, or it crashes regardless of which apps are running?
It crashes after a while no matter what's running and seems to be related to GPU access. I get the "virtual void IOAccelEventMachineFast2::checkGPUProgress() - Signaling hardware error on channel 18..." errors in the Console Log.
BTW I have AMD RX 6800 XT. Thanks for your help!