blunder or brilliant

https://www.chess.com/analysis/game/live/17001727703?tab=analysis

Hey guys,

I had this (in my opinion) brilliant idea 47.f6+ and after exf6+ and kf5 but it's apparently a blunder

My intentions with this move were, that the black king has to move away from the pawns  since all his other pawns are blocked.

This way I could easily recapture and promote.

So why is it a blunder?

because the black king goes to h8 and you will lose the g pawn. king g6 is stalemate

well I did another analysis and the engine didn't count it as a blunder anymore

anyways in this situation I believe it was better for me to eliminate all potential threats black has, because I am low on time.

This enables me to premove more quickly as I don't have to watch out for blacks pawn

I can basically preomove mate

White is winning and should leave g pawn