BUG: Way of the Hunter (Steam) black screens

I have installed and run Way of the Hunter using both Proton GE 10.5 and using Proton Hotfix with Steam.

When the application starts it asks what to run it under (run, DirectX11, DirectX12) and I chose the first option. (no explanation what that selects for video)

Cache construction happens as normal.
Application starts, music plays, but screen is black.
Clicking around I someone ended up in my saved game.
Screen is still black.
I ALT-TAB out of the application and the screen comes up visible!
If I move the mouse back into the application it goes black.

This application has always been a platinum for Proton. This is a Wayland/NVidia issue I believe.

System:

MINISFORUM 795S7 Mini Tower Gaming PC AMD Ryzen 9 7945HX(16C/32T) Computer 32GB DDR5, 1TB PCIe4.0 SSD, 2TB PCIe4.0 SSD, 1x PCIe5.0x16, M.2 2230 Key E Slot, 2.5G LAN, HDMI+DP+USB-C Outputs with RTX 4060 Graphics