In case anyone likes to play Quake with a gamepad I recently made this add-on which adds Dark Soul III style target lock. (Click L3 to toggle. Breaking line of sight breaks the target lock.)
https://www.slipseer.com/index.php?resources/textless-hud.58...
Some might consider this "cheating" but in my opinion aiming with a mouse is so much easier that using a mouse against players using gamepads more resembles cheating.
I used to play q3l competitively and I can’t imagine trying to get any real results using a gamepad without help. That’s a neat idea.