I'm confused how any of those downsides are resolved coming into work? All of those things are just as liable to happen in person. To be honest meetings are a lot more to the point when done remotely. In person the first and last 10 minutes of a meeting are spent just pissing away the time on whatever, the presenters dog did something funny this morning perhaps. If you are having issues with onboarding team members or getting everyone on the same page, just have them meet more often over zoom to discuss projects. Having them come into the office comes with this assumption that people will meet up and help eachother and be productive etc, but in my experience most office chitchat is not relevant to work at all.