I work in a central business district, in the office most days of the week.
People being back even 3 days a week, and especially 4 or 5, seems like something you see in big companies, with tech and finance being the strongest sectors - the ones that have deeds or long-term leases for a whole building or several floors of one. Small and medium businesses have been far more likely to either give up the office or downsize it. It's a distinction between being stuck in a long lease and trying to make the most of it versus having a shorter lease that you can eliminate to cut your fixed costs without losing employees.