Are there any distro besides steamis (and by extension chimera) that's support hdr? Or do you just need to launch the game in full screen so it takes over?
I built a couple of HTPCs like 7 years ago or something. Kaby Lake iGPU had support for 4k HDR so I figured I would use the i3 7100T and Linux would add HDR support soon (I was using LibreELEC which was a minimal Linux that just boots into Kodi). Welp still waiting...