Factorio is definitely good for your brain - it rewards focus, refactoring, problem solving, linear thinking... But yes, in the end, it's non-productive in any physical sense.

A weekend of watching movies/shorts feels way worse than a weekend growing the factory. It's definitely a step up, but the best would be to get out of the house more often besides going to the office.

One day at a time (recovering from a lot of past emotional pain).