I set gfx.wayland.hdr to true and tried opening this video. It says HDR around the cogwheel, but the colors are washed out. With this option disabled the video looks great.
I tried enabling other options, like native_srgb and compositor as suggested online, but no difference.


I just managed to get Cyberpunk with HDR working. I downloaded Protonup-Qt, installed GE-Proton10-25, selected it in Steam and added
PROTON_ENABLE_WAYLAND=1 PROTON_ENABLE_HDR=1 ENABLE_HDR_WSI=1Hmm… It’s still washed out for me If I downgrade it.