@inmaniac this game was played with zero time increment. There's a rule that says when you lose on time in such time controls, if you can provide a non-losing strategy in the final position, or if your opponent has no way of improving their position, you can claim a draw by demonstrating you strategy to the arbiter. This way you avoid the fate of losing on time.
From a purely chess perspective, the game is not a draw, since white is winning. But if white chooses to defend passively, black has no way to make progress. By demonstrating this, I would've been able to claim a draw in real life, but unfortunately we don't have readily available arbiters here on lichess.