One of the things I’m working on at Red Hat is HDR support. HDR is inherently linked to luminance (brightness, but ignoring human perception) which makes it an important parameter for us that we would like to be in control of.
One reason is rather stupid. Most external HDR displays refuse to let the user control the luminance in their on-screen-display (OSD) if the display is in HDR mode. Why? Good question. Read my previous blog post.
In 5+ years, when I may have HDR on my desktop, Gnome will be more than ready. (:
I remember a time, when you have to wait for hardware support. But maybe monitors just aren’t the thing you buy every 2-5 years. Mine is more than 10 years old and very sufficient.