Only done about 8 days in the office in my life as I didn't work in an office role until after the lockdowns started. Not in any rush to do any more tbh, the commute is expensive and takes ages just to get less work done than I would at home and I can't even do anything interesting in my unpaid lunch break as I am still at the office.

At least in my last non office role lunch break was paid time still so I usually just took as long as it took to eat something and then got back on with what ever I was doing. Although there was also more job satisfaction there as customers were normal people rather than faceless corporations.