Hey Eric,
Finally figured this out.
Apparently
this is a 'feature' of KWin (KDE window manager), and exists to not
allow windows to randomly take focus when you're working on something
else.
So KWin has special settings to tweak this, I'm sure there's something similar for SuSE.
You have 2 options:
Completely disable this feature from KWin. (they don't recommend, but I guess it depends on what kind of shady apps you have installed)
In system settings->Window Management->Window Behavior->Focus->Focus stealing prevention set to None
Set specific settings based on window names. This is better(safer?), but more annoying. For some reason KWin doesn't seem to recognize all windows as part of the same application.
So for every Chimera window that you open:
Right click the top taskbar(or ALT-F3)->More
Actions->Special Application settings->Appearances &
Fixes->Focus stealing prevention-> set to force 'None'
Also go to the tab `Window matching` and uncheck the match whole window class, and change exact match to unimportant
then make Window title Exact match, and use the window title of the chimera window that you're on (like 'Model Panel')
You might have to restart chimera. and now it works for me!