Yeah but there’s a very good chance that won’t work with various hardware configurations. I was able to get per-monitor scaling to work only after giving up use of half my GPUs, and still there were problems with several apps. This was on stock Ubuntu; I didn’t get too crazy customizing because I just wanted to find a Linux desktop that worked.
X11 is not capable of doing this properly. Wayland is and as you probably know, nvidia refuses to support it which is out of the control of linux developers. You can get everything working if you use the open source nvidia drivers but then they run slow as shit because nvidia blocks them from setting the clock speed on the gpu.
Basically every problem falls back on nvidia and the linux desktop people have done everything in their power to make it work.