Steam games working fine in Desktop Mode but not launching in GamingMode (DX11 error)

I had three games (bought on Steam) that refused to launch in GamingMode but when I go to Desktop Mode I can launch them without any errors. It isn't conveniant because I installed ChimeraOS to get a console experience so I tried to fixed them and only succesfully fixed one of them.

## The error :
A giant pop-up window with the following text :

### Couldn't switch to requested monitor resolution
Details:
Switching to resolution 3840x2160 failed, trying lower one
All resolution switches have failed
Screen: DX11 could not switch resolution (3840x2160 fs=0 hz=0)

## The games :

- Stick Fight: The Game (fixed)
- Heavenly Bodies
- Tools Up!

## What I have tried :

- Switching to different proton build (Experimental, GE, etc...)
- Launching in Desktop Mode (IT WORKS)
- Launch option : PROTON_USE_WINE3D=1 %command% (worked for Stick Fight)
- Launch option : -nobatch -no-graphics (The game launch, I can hear the menu music but my TV is only showing the steam loading screen with buttons at the bottom (STEAM Menu, B Force to quit))
- Launch option : -fullscreen=0 (and others but no success)