Maybe others can figure out what the problem is if you post your system info in more details.
Because it’s working fine for me on my system, plus that screen looks different on mine, perhaps you’re using a different version of KDE due to distro diff…
It could also be related to having two screens vs a single one on mine.
Sorry @TriMoon, I didn’t replay to you. I don’t know why I didn’t see my post.
I don’t know why is not working the global scale.
I have two monitors one with 2560x1600.
And the other with 1920x1080.
I putted bot in 1920x1080 too see better the things BUT If I open my second monitor (1920x1080, the things are bigger than the other but both are in 1920x1080)
I don’t know how can I do to have the correct scale in both monitors.
I would like to use 2560x1600 obviously, but all is too small, I don’t know if the solution is increase the font. I don’t know if it’s possible put global scale to monitor 1 in 200% and global scale to 100% in monitor 2 or something like that.