just adding the game... we'll get to analysis later
Per the Chess.com "deep" engine; this was a "well played" yet close to drawn game. the only significant mistake was
*39 gxf? I think I was seeing the reply gxf exf? but after I take Kxf is much stronger and now black must hold back Two pawns!
... yet the engine thinks it can be done! all I know, is that its far easier to draw a position where the pawns are locked, and there are opposite color bishops.