It doesn't take that much practice. You just have to say, "Draw, dead position ", a few times.
How to avoid stalemates in winning games?

But your chances of needing to mate with KR v K are about as slim as finding yourself in KBN v K, because your opponent will invariably start with 1. Resigns.
Except that I know that some of my opponents will stalemate me or blunder the rook, so I don't resign.
But your chances of needing to mate with KR v K are about as slim as finding yourself in KBN v K, because your opponent will invariably start with 1. Resigns.
Except that I know that some of my opponents will stalemate me or blunder the rook, so I don't resign.
It's actually pretty hard to stalemate in KRvK - much easier in KQvK. (Is OP trolling?) Judging by a lot of posts explaining how to mate in KRvK that have appeared in the forum here and over time, a draw under the fifty move rule would be a possibility though, so your approach is no doubt correct.
Indeed the best advice for OP is probably to not follow advice on the fora (but that advice would be difficult to follow, of course).

Indeed the best advice for OP is probably to
The best advice for OP is to learn how to mate with a rook. It takes like half an hour at most (find a video and watch it a couple of times), and it is extremely useful. I had a lot of times when my opponent did not resign in such a position, both offine and online.

I'd recommend searching for how to win king and rook endgames on YouTube. There are plenty of videos on that. Of course, watching a tutorial is only part of the learning process. You need to practice it as well. On the left menu found on chess.com, click Learn, then Endgames, then Checkmates, then Rook Mate. There you will solve some king and rook checkmate drills for practice. You can also try doing it as fast as you can once you have mastered it.

dont start getting overconfident about your win, and im saying that as someone who did exactly that (and stalemated with -M2)
if you're completely winning, pay attention to what your moves will do, as in said game, I started making random moves for -M2, and accidentally pinned my opponent's last moveable piece -- a pawn! Tragic game, but a lesson for me t learn.
I started leaving them with a Knight, they are the easiest to avoid and can pretty much always move. The King/ Knight versus King checkmate is just something you have to practice. It's not hard, I figured it out on a board, but I should look at the videos.
Wait, what?