Is this game a win for white?

www.chess.com/analysis/game/live/4919036363

White is a player on chess.com and arrived to K+B v K+P+R when black ran out of time, technically a mating position is possible if black loses his rook and promote to a bishop then run the king to the corner to set up the mating position, so wouldn't this be a win for white?

I had an earlier forum post about "possible mating position" being legitimate claim to a win.

lichess.org/forum/general-chess-discussion/why-is-this-game-a-loss#1

Yes, per FIDE Laws of Chess this is a win for white.
Black does not need to lose the rook, he only needs to promote to a knight and then there exists a series of legal moves that lead to checkmate in the corner.
The other website incorrectly applies the Laws of Chess.

Yeah im pretty sure those situations happen in tourney games too. It should be a win if the opponent times out as long as there is a possible checkmate

This is a win for the White player because there's a possible legal sequence of moves that leads to White player checkmating Black's King.