There's still some things Safari prioritizes that other vendors don't have. For example, Chrome (and FF) still haven't fully implemented CSS colors level 4.

Chrome and Firefox are still clamping all CSS colors to sRGB. You literally can't render anything outside of sRGB with CSS. And almost all modern Apple devices are capable of the display-p3 color space.

This is very noticeable when rendering reds and greens, especially.

https://webkit.org/blog/10042/wide-gamut-color-in-css-with-d...