It seems this happens whenever I set display scaling above 100%. KDE and gnome applications seem unaffected but on Qt applications pictures and icons look somehow distorted. The size of widgets is fine though. My graphical desktop envinroment is KDE
Edit: It seems I cannot add screenshots to this post for some reason.
An inxi --admin --verbosity=7 --filter --no-host --width would be the minimum required information… (Personally Identifiable Information like serial numbers and MAC addresses will be filtered out by the above command)
QT Applications need to be designed with scalability in mind so without knowing which applications exactly, it’s going to be hard to help you much further.