Would be interesting to record some similar stuff in win and mac here if you do to try to deconstruct exactly what is different. It's time consuming as always tho.
- Refresh rate / VRR
- Different monitor timings / blanking
- Different default gamma?
- Copy color profile and timings from Windows to Mac?
- Effect of turning off retina and scaling on both and running them at native resolution?
- Recording of scrolling text https://www.testufo.com/framerates-text
- How much does the same browser differ? Is the issue everything else on the OS?