We really should improve default font display quality. We need to create symbolic links in /etc/fonts/conf.d from /etc/fonts/conf.avail of 30-Droid-noto.conf 30-Droid-noto-mono-conf 10-sub-pixel-rgb.conf As a side note: Oxygen-Mono 9 as a monotype font should simply disappear as a default choice (poor looking, not char complete as Noto, too small) and so ttf-oxygen as a dependency (poor looking, not char complete as Noto). I strongly suggest using Noto Mono 10. Thanks, great distro! Reproducible: Always
I'm afraid we don't have the knowledge to reliably make changes to the foundations layer, best report to Ubuntu and convince them to change it. I've submitted a patch to Plasma to change to Noto Mono as the mono font but it was too late for 5.7