alt Hacker Newsmy idea of de-brainrot is by going to destinations where everything is new and experiencing everything there physically & mentally. either going to a new city or drive to a new place. i'm not sure if it's anecdotal but there's a feeling of astonishment when experiencing a new place. i find that when you go back you have this new perspective and you feel refreshed.
I have experienced a similar feeling. Often I will dream of the newly "mapped" area once I arrive home (with cartoonish/dreamlike elements that are far from perfect). After I awake from this dream I feel likewise refreshed.