Earlier quoted context omitted.
> I never get to see same smoothness in graphics and fonts as MacOS/Windows/ChromeOS in the same machine with Linux. Well, Chrome OS runs the same stuff as your average Linux distro, however maybe most distros don't turn on subpixel antialiasing in their FontConfig out of the box. (I don't know because I've been sharing configs between machines of the same distro for about five years).
Some distros do not enable subpixel rendering indeed, due to patents and them being based in the US. The users have to download a -freeworld package then, if they want it. With HiDPI, that doesn't matter anyway. Another issue are fonts themselves. If you have a document that uses Arial or Cambria or another proprietary font, and you don't have it installed, you are going to get something substituted, which may or may…
If I'm not mistaken, those patents are dead now. Even Fedora has the freeworld stuff now.
> Another issue are fonts themselves. If you have a document that uses Arial or Cambria or another proprietary font, and you don't have it installed, you are going to get something substituted, which may or may be not metrics-compatible. Do not expect pixel-identical results then.
Yeah, though the Chrome OS core fonts are good metric-compatible substitutes for Arial and friends (though lacking the stylistic variety of the core Windows fonts).