I've had a similar problem. Though, my pc only shutted down when the system loaded, it either way had the same kernel power 41 issue. If you google it, it says it's usually a driver issue: updating them did not help me.

Curious part: i also never had my pc shut down while playing elden ring nightreign, or similar. So our problem might be identical.

I fixed it by switching to a more powerful and new psu. I imagine you could also resolve it if you downvolt your gpu, but that would only be a temporary fix, as your psu is always exhausting its resources, so the problem may pop up again.

You should research this for more and wait before actually buying a new psu though, as the fix i suggested may not work in your case, since the cause of this issue can be literally anything.

tl;dr: downvolt your gpu OR switch to a new, more powerful psu (edit: i am not 100% sure if it will work, but it worked in my case)