I do do things for myself. What I do for work is also my hobby, but I have zero self control. I would happily dive into my side projects for weeks on end just to have them crash and burn from burnout or from my getting side-tracked.
Last time I wasn’t working I lasted about six months before I had to get back to some sort of work simply because my own personal projects became extremely boring. Even things I have put years into at this point, I ended up getting bored quickly even though I hadn’t increased my workload
To be clear, I wouldn’t be working full-time, but I enjoy the unique challenges that work brings me. It gives me things to think about and solve that I wouldn’t have considered, and that helps keep the burnout at bay