My daily de-brainrot vacation is .. playing with synthesizers. Nothing gets the webs cleared out faster than a quick jam, maybe laying down a couple loops, getting some ideas fleashed out into a bigger structure.
Music-making and musicianship in general is great de-brainrot.
Starting to learn to play the keyboard was an awesome experience for me. Unfortunately I was learning on my brother's and I don't have it anymore. I think I'll gift myself one on christmas.