Just wanted to find out if there was any progress in terms of screenshots when using gamescope and KDE 6. Last time I tried (running Arch and with an AW3423DWF monitor with HDR 1000), display support worked, but screenshots seemed insanely washed out and generally broken, which was unfortunately a make it or break it feature for me. Has anyone got a similar setup that they can try it out on?
Yup, was using Spectacle, behaviour was similar to your description. I guess maybe the HDR highlights just got more blown out on higher brightness displays?