There are at least 2 repos that provide subpixel font hinting, Index of /subpixel/ & Index of /repositories/home:/muzlocker. They appear quite similar other than muzlocker also provides Cairo packages (as I am primarily KDE I don’t think they really matter to me).
The Muzlocker repo significantly improves the fonts for Mozilla products such as Firefox and Tbird. If you run Mozilla products then you should install and use the Muzlocker repo. I run KDE and without Muzlocker, the Mozilla product’s fonts are very pixelated, however, with Muzlocker the fonts are very smooth and antialiased.