As asked on #ubuntu+1 IRC, I tested on Xubuntu Focal Daily Live. It was needed 2 hours until I got a GPU hang, but once got it, the computer behaved exactly the same.
** Attachment added: "dmesg from Focal Daily Live ISO" https://bugs.launchpad.net/ubuntu/+source/linux-signed-5.4/+bug/1861590/+attachment/5324735/+files/dmesgfocallive.log -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1861590 Title: Intel GPU hangs constantly under load. After closing offending application, all GPU intensive programs run degraded To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-signed-5.4/+bug/1861590/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs