The best I had was in a chemical plant. The work was highly intellectual but it also required implementation which you couldn’t do in an office chair.

Probably walked 2 miles a day and stood for about 4-5 hours in periods varying from 30 min to 3 hours. Nothing overtly physical. I have done hard manual labor jobs and they kicked my ass when I was in my 20’s. Couldn’t do it now. Not without some damage.