To babble a bit more: in August I tried taking a part time morning delivery gig (4-8m 24h/week) thinking it would feel the same but not at all (newspaper delivery is physically stressful), so I quit drained after a month, even though it required no effort and was less time per week than the truck thing.
Right now I have a 30h/week food delivery gig, it's just right to keep me active and the rest of the day I'm writing vue code now.
I may try to find something that would make my body more fit. Maybe having a woodworking shop or something similar.
My wife and I are thinking of buying and renovating an old apartment ourselves. Of course economically it would be better for me to work and pay someone else to do it, but the benefits of learning a new skill and doing something physical are worth it IMHO.
“Working out” is difficult for many, but it can be so many things. For a year or so we spent time on movement training, something I highly recommend in general.
I guess I should try lifting heavy, consistently over weeks, and see if that does anything.
HIIT/interval/crossfit style are prime examples of in my opinion the most efficient way to achieve "exhausting" workouts (lowest time commitment, and with group gym style, lowest mental effort to formulate workout plans; it's all left to the trainer).