I had the same problem with DXGI_ERROR_DEVICE_REMOVED followed by Reason:DXGO_ERROR_DEVICE_HUNG. After all possible attempts. It worked !

“Meh.
Just enable user permissions to full control (security tab under properties) for nvlddmkm.dll nvlddmkm.sys in system32.
If the gpu core isn't borked it'll stop crashing."

It really works! Two days without crashes!!

https://www.reddit.com/r/nvidia/comments/12l01wf/nvlddmkm_4090_crash_solved/?onetap_auto=true