Until recently I was a dev manager for about 20 devs (not all direct). I did work 80 hours a week, still do. I know I am unhealthy. I don’t like doing things that are not technical. I get uncomfortable and bored quickly.
My work gives me complex tech problems constantly. So I feel better working. But I attribute this to an unhealthy grip on life that stemmed from somewhere.
All my devs wanted to also work 80 hours a week. I had to keep on top of their own hours to tell them to go home and find a girlfriend.
DONT work crazy hours because someone else in your sphere is doing it. Only do it if you can honestly say you are unhealthily obsessed with it and can’t actually have a normal life.