I noticed that on some upper case letters the top part is cut off. It only happens for some letters, like E, B and P, and it does not happen in every application. As an example I added a screenshot when using "Easy Effects"
For posterity, here are my font settings and my system specs:
That's a gtk app, so you should look solutions for gtk apps on kde. Or does it also happen in default (qt) apps?
(It's a known issue that the 2 big DEs don't like apps from the other, as a gnome user I try to find gtk based alternatives if they exist.)
It's not a known issue of DEs not liking each other, it's purely gtk issue.
Well kde apps doesn't look good on my gnome. Is it also a gtk issue?
Yes.