I know they won't even read this but what the heck!...
The solution is very simple : apply a turn-switching timer (also called toggle timing) for the entire matchplay, just like in chess.
For instance, whether it’s a par 3, par 4, or par 5, each player must complete everything from the tee shot to holing out within let's say... 2 or max 3 minutes.
This will eliminate confusions about timeout numbers and, more importantly, will take care of those idiots who intentionally play slow on each shot just to annoy you.
Another benefit of this approach is that you can manage your time strategically, allocating it based on the importance or difficulty of each shot within the overall time limit, maximizing your own time usage without making your opponent wait unnecessarily long on each shot.