Your system information

• Steam client version (build number or date): 1759461205
• Distribution (e.g. Ubuntu): Fedora 43
• Opted into Steam client beta?: [Yes/No] No
• Have you checked for system updates?: [Yes/No] Yes
• Steam Logs: steam-logs.tar.gz
• GPU:Hybrid (AMD radeon 780M/RTX4060 Max Q tho currently via MUX Nvidia GPU only enabled)

Please describe your issue in as much detail as possible:

Once i set my Laptops Nvidia GPU to be the only GPU on the system Steam games will not run only providing a blank screen. My other games which run via Lutris work absolutely fine running on Proton-GE, On steam both Proton GE and Proton Experimental are non functional.
I have tried more than one game and all have the same issue
To note i have also tried disabling Mangohud to see if it was causing the issue but to no avail.

Steps for reproducing this issue:

1. Set main display out to be Nvidia GPU
2. Open Game
3. Instead of the games UI coming up the result will only be a blank black screen.