Hi, I'm not sure if this is the correct place to post this or not, so I am sorry if this the wrong place. My problem is when I try to run games that were made in Unity3D, I can't exit them unless I log out by Ctrl + Alt + Del (Task Switcher and Alt + F4 doesn't work). Some games also freeze when I open them. I've tried them on Xfce and these issues don't show up. My guess is that these issues have to do with GTK and Qt. I'm using Kubuntu 18.04. Also sorry for the terrible grammar and sentence structures.

I have also problems with both softwares. I have problems with the Unity3D menu and the global menu of Plasma desktop panels, it seems to run for a few but after some use (minutes) it disappears.

amgmnplk wrote:I have also problems with both softwares. I have problems with the Unity3D menu and the global menu of Plasma desktop panels, it seems to run for a few but after some use (minutes) it disappears.

which exact distribution and Plasma version is this about?... if you are using Neon, I suggest changing, as Neon is a KDE showcase, not a distribution, and there is no guarantee that anything not KDE related will work.