I think that is a historical artifact. Ubuntu had a set of patches for freetype called infinality, developed around mid 2010, which dramatically improved font rendering. Since then, most of those improvements have been adopted and improved in upstream. [1] Any relatively modern Linux desktop should have very good font rendering.

[1]: https://www.freetype.org/freetype2/docs/subpixel-hinting.htm...

Except for the hidpi inconsistency across apps and window managers

As with most things Apple, it is a joy as long as you restrict yourself to only plugging the device into official Apple peripherals, preferably ones that are available to buy right now. It’s when you start hooking your Mac up to old hardware or random commodity hardware that the problems surface.

I recently started using Linux some on the same 4K monitor I usually have my Mac connected to. I was shocked at how much sharper and easier to read the text was on Linux.