Donux there is 100% a difference with OS versions on some computers, for example Ubuntu 18.04 on 2009 Macbook Pro 13" is great, but macOS Monterey makes the screen feel noticeably more weird, there are even differences in the output showing the same exact photo or screenshot (even when the color profile is disabled) that I can actually see when I take a picture close up with a camera, where pixels at edges of objects within images appear brighter and more exaggerated in a macro shot while running macOS, especially red subpixels
The panel has both PWM and pixel inversion, and the speed of the PWM I see on camera doesn't change between the OSes so it's not that for me. NVIDIA temporal dithering can also be fully disabled on both OSes so it's not that either. Both OSes are fully using the NVIDIA GPU (acceleration is NOT disabled) and even other functions like wireless are fully enabled on both — and yet the screen output is still so much better on Ubuntu…
Interestingly, on macOS the screen output changes (to become even worse and more unstable) when a power adapter is connected, but that doesn't happen at ALL while running Ubuntu on the same computer — so it's definitely something macOS is choosing to do itself and not the hardware.
So it is directly related to a problem with macOS's color output itself, which means the OS installed (which extends to the version of the OS too) does matter
BTW noticed a similar issue on a newer ThinkPad (T460s) I tried but in reverse: brighter reddish edges were much more noticeable in a macro photo of Ubuntu on the T460s (and the screen felt worse)… but the same artifacts were less visible on camera when displaying an exact copy of that screenshot but on Windows 10 instead