arg… my idea … 
And yes,… NVLDDMKM can be related to the driver. But that not allways helped the users. I remember also reports where again RAM XMP mode caused that, but also where e.g. in BIOS the ResizeBar support was enabled and there are more strange reports in net where nvidia recommend the users to completely shutdown the pc and disconnect the GPU from power ( I assume shutdown + disconnect pc from power + press onetime the ‘on’ button, should be sufficent too ). ( therefore my hope was, the usually HAGS was the bad boy )
On other side… for me is these whole win11 still a beta version. May be the studio driver will help.