#Kate editor drives me nuts.

On macOS : home/end keys have no effect whatsoever in a document window, but in a diff output window they behave as expected (jumping to start or end of window).

On FreeBSD (XFCE or Plasma) : home/end keys just move the cursor somewhere toward the beginning of current line* or at the end.

(*tap home once, cursor jumps before first non-blank character, tap home a second time, cursor jumps at true beginning of current line)

So I guess, somehow, it’s a behavior that could be tuned. Full disclosure, I have no clue how to change that.