whystrainwhy All of them copy from each other and use the same industry methods, so I would not point out to anything specific. Ditherig was created for those old GPUs first, but this is a list from creator of ditherig:
This requires Intel 6th generation graphics or later (e.g. Intel HD Graphics 3000, including Sandy Bridge, Ivy Bridge, Haswell, Bay Trail, Broadwell, Cherry Trail, Skylake, Kaby Lake, Broxton, Coffee Lake, Gemini Lake, Amber Lake, Whiskey Lake, Ice Lake, Comet Lake, Lakefield, Jasper Lake, Rocket Lake, Alder Lake, Raptor Lake and Meteor Lake generations) or AMD GCN 5th generation graphics or later (e.g. AMD Radeon Vega 11 Graphics, including Raven Ridge, Picasso, Renoir, Cezanne, Rembrandt, Barcelo, Raphael, Phoenix and Hawk Point generations).
I have checked behavior with Intel Iris Xe Graphics, Intel UHD Graphics 620, Intel HD Graphics 515, Intel Iris Pro Graphics 5200, Intel HD Graphics 4000, AMD Radeon Vega 8 Graphics and AMD Radeon 680M.
So I personally would go for newest one from this list, or maybe get proper gaming raphics card for stationary desktop. Those usually a bit more liberal on customizations.
Also, all in all, I would say - macbooks are not as bad as claimed. Windows 11 I think is worse than any macbook on the older machine. Newer machines, maybe it is much better, I do not know. With any of the Air line you could set Generic RGB color profile, turn of dithering with betterDisplay or stilColor app, and it will be better. It just what happens - people tend to work more and become more engaged whilst using macbooks, this is a reason why unfortunately macbooks are blaimed for so many things. I am yet to prove this, but once I will get that portable monitor which could be placed above macbook air screen, you could have good machne. Switching machines also, I realised not a good idea. I do not know why, but if I would work with macbook all day, and then switch to windows 11 laptop, I would be toasted and have severe brain fog. But if using only windows machine, I can adapt to it. Just not sure anymore is it really better. It culminates always in anxiety attack and brain for me.
And forgot to mention Ubuntu or other linux distro. These I feel work well with old hardware, i.e. it allows to turn of dithering. I even had one company who did not allow to use Windows for contractors. They said either Mac or Linux, no windows.