20 years with my company in office and now 1+ years post-covid with a flex policy with most people working some form of 3 in and 2 out. I hate it. I think my teams are way less productive and less "connected". Meetings are less effective. I find it really frustrating to get my teams working together effectively. We are a heavy team-oriented company and me and my peers at the senior management level hate it. But we can't force them in because they will just leave for a more flexible company.