What is the reason and/or fix for UE5 (5.03 & 5.1) freezing my whole pc?

This may have solved it for me:

https://nvidia.custhelp.com/app/answers/detail/a_id/5157/~/after-updating-to-nvidia-game-ready-driver-461.09-or-newer%2C-some-desktop-apps

Disabling MPO. On 7900 XTX.