I know there are problems with remote working (I worked remotely for 20 years from 1996 so I have experience), but there also seem to have been problems with working in large offices.

Finland sees big drop in sick leave after nationwide remote working recommendation https://yle.fi/uutiset/osasto/news/finland_sees_big_drop_in_sick_leave_after_nationwide_remote_working_recommendation/11611784

The report suggests that sick leave dropped 30 percent overall. The drop looks to be even bigger in the public sector. Among civil servants and government employees, the drop was 50 percent.

From comments from my son, I think that in most cases a hybrid system might work best, say like going in two days a week.  Some work can go faster with no distractions (I definitely found that), but there is also the need for face to face contact and interaction and the sharing of ideas (I found when in an office the informal sharing of ideas was a great help).