you know a forum is serious when a game from lichess.org is featured 💕
Let's study some endgame

One of strongest things you can do, not only in an endgame, but in chess in general, is to use your opponent's pieces against him, mostly his pawns: 42.Kc5 - my king can easily advance and squeeze the enemy king with pawns and a rook - because he hides behind Black's c5 pawn - he cannot get "checked". (the computer calls 42.Kc5 an inaccuracy, but he's just jealous, and don't trust him - he's using an engine).
* 2 connected passed-pawns are enough to give mate (without queening):
https://www.chess.com/forum/view/game-showcase/my-best-game-on-chess-com-so-far#comment-63307787
Besides, trying to checkmate while your opponent runs after pawns, is a good strategy - sometimes he makes a queen, and then I give mate - generally mate is faster than queening.
Creating a "pawn-basket" to your king against checks from rooks, is a good strategy, it even works against checks from queens if you calculate the queen's 'checks':
https://www.chess.com/forum/view/endgames/not-every-check-is-good
The king & Basket duo generally needs to go up the board.
In these levels, they play a Benoni and Grunfeld as well - which I barely face, so the opening and middlegame was sort of, lousy. But an endgame is an endgame.
I think that what won me the game, is creating a clear path to my king - 35.f3
He has 2 passed-pawns, a rook behind them, and he lost... why? I think it's because he can only get behind one of them, and if he pushes it, the other will be captured ("who cares - just keep pushing" is an option if his b-pawn was on b4 (=for him - the 5th rank), but it's still on b5, so, no - I capture the c pawn, return, and enslave my rook his pawn-&-rook until Mr. King comes to put things in order).
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Besides - I have a staff and he doesn't... what can he do?!
Moses had a staff, and so shall you.
An ever greater staff than my own - against a snake:
Minute 8:40 - "The principle of two weaknesses" - never heard of it, interesting.
There's also the "Great Snake Variation" against 1.c4, but I don't play c4.