White didn't use engine assistance in this game, Black may have used engine assistance but I don't think its clear from the moves. Black's moves are theory up to some point so could have been played by someone who was booked up. However, black had very odd move timing which might indicate engine assistance or their game may have been interrupted by real life. Black spent 4 mins out of 15 mins on Qxf2+. Which I think is strange because black has very few serious candidate moves and Bxf2+ has an obvious refutation and otherwise the Black Queen needs to move because its threatened to be captured with check and g7, and c7 are hanging and the Queen can't defend both squares and losing either would be disastrous for Black. However, since White's reply is forced there is an argument that Black should spend time on Qxf2+ calculating variations beyond Kd1 rather than spending time after Kd1 just in case Qxf2+ is not good.