The GNOME fractional scaling support is part of the 3.32 release so it should also have landed in Ubuntu 19.04. You can enable it in F29/Ubuntu 18.10 but the re

The GNOME fractional scaling support is part of the 3.32 release so it should also have landed in Ubuntu 19.04. You can enable it in F29/Ubuntu 18.10 but the reason it's not enabled by default is that it doesn't quite work properly. edit: I just installed Ubuntu 19.04 and it has GNOME 3.32 but there is no fractional scaling available in settings, in either Xorg or Wayland. The old experimental option can still be enabled but continues to make non-GTK3 apps blurry.