Hi @JimmySlips,
you might want to disable or uninstall the Nahimic Service, then you should be able to use Minifreak (or whatever other software freezing with a white window) on the second monitor.
The issue is not directly connected to NVIDIA, using multiple monitors, mirroring screens or using a TV, but the interaction between OpenGL accelerated software, Nahimic and multiple monitors (the video window in Cubase 12 would yield the same result as Minifreak).
I have checked your freezedump, which indeed has NahimicOSD.dll loaded in the modules.
I couldn’t otherwise reproduce the issue with 2 or more screens, including a 1920*1080 TV.