If it matters, I am on Fedora silverblue. It does. HDR isn't really well supported on xorg-based systems. Fedora has Wayland though, which handles HDR better. HDMI This also matters. HDMI 2.1 isn't supported on amd systems just yet. It doesn't matter unless you want 144hz at 4k, but it does matter. Linux does a better job of supporting displayport, but tvs don't usually have displayport inputs.