I just installed ubuntu budgie 18.04 on my new computer. I installed the set of tools that I use on my linux workstations including krita (via appimage), blender (with the files from blender.org), kdenlive (via appimage) and scribus-ng (via ppa).
I have a problem with scribus and krita: the buttons, menus, icons, ... are huge and pixelized. But the text is at a standard size. Both program are unusable without correction.
For krita I went in the configuration file and remove hidpi support (there is such an option). Now it works like a charm. But for scribus there is no such option. I tried to launch it with QT_SCALE_FACTOR=0.6 and it is still barely usable as the text decrease too.
I though that it would be a problem with Qt, but it seems not, as kdenlive worked perfectly out of the box. Still, with appimage it's hard to be sure.
Is there some option I'm missing somewhere ? Could it be that my screen (HP compaq la2405wg) is sending misleading hidpi informations ?