[ramblerman]

If there is a 15 move sequence that leads to a guaranteed win, stockfish would not call it a 1 pawn advantage (given the sufficient calculation time) instead calling it a won position.

I think you may be mistaking your understanding of stockfish as shallow in that regard.

Where the big differences might emerge is in strategic mid game positions without any clear tactics or forcing moves. There lc0 can somehow "feel" that a position seems better.