I know that F11 makes Konsole “full screen”, but I never got around to find ut how to make it truly full screen. I mean so the terminal “text” covers the entire screen. DuckDuckGo:ing and the Konsole Handbook is to no avail. Any Plasma Guru with the know how?
…and yes, I want to run cmatrix full screen. Yes, I’m a geek. So terribly important.
You first F11 and then run cmatrix
It doesn’t auto-resize (i mean cmatrix program)
I tried that, but the konsole “frame” is still there. I just want the cmatrix running covering the entire screen, and not this:

Maybe I was unclear.
Oh…i see, i hate this Plasma / Konsole visual BLOAT, had no idea it’s F11 that way.
You need to:
-
Settings → Toolbars shown
[ ] Main Toolbar
[ ] Session Toolbar
-
[ ] Show menu bar
In case you’ll ever need it back - just RMB anywhere in Konsole, there will be Show menubar entry.

In addition to what @keybreak mentioned, I also remove the window border for Konsole. I do not make it full screen with F11, I just maximise it (by dragging it to the top edge of the screen).
This way, I can have it tile and float as well. Since it doesn’t have any borders, if I need to move or resize it, I use the Meta key and the mouse.