Okay, first off it was more like 10 wins over 13 games but hyperbole aside, I saw a short where Magnus explicitly said that he doesn't calculate further than 2-3 moves ahead.
That's all, but it gave me like belief that I don't need to try to do something that the GMs weren't even doing. But the concept of calculating deep into a position is a misconception I believe a lot of players have, not just beginners.
So regardless of your level, if you think that you have to be a mega-brain calculator, you don't. Just make sure you aren't relatively worse in a position 2-3 moves from now.
EDIT: for the people saying he doesn’t brute force calculate every line, no shit. But like what I took from what he said is I just look at a move at face value and see if it has some like continuation, obviously dismiss like moves with no follow up and yeah he has intuition to filter out moves but it’s still really applicable