Last summer I started working at a place that does this, and it's been great, for the reasons you mentioned! We have tuesdays and thursdays set up as remote day

Last summer I started working at a place that does this, and it's been great, for the reasons you mentioned! We have tuesdays and thursdays set up as remote days, with meetings highly discouraged. Half my team has a decent commute, and only come in on monday and friday. What I like about it: I get a lot of control over where and when collaboration vs. heads down work happens. I know I'll have the space to go heads down for as long as I want tuesday/thursday, and that I'll see my full team at least twice a week, so we tend to plan around that. I can also plan personal activities, appointments, etc. on the days I'm working from home, knowing I don't have meetings or a commute. I didn't realize how important that face-time was until we lost it at the start of the pandemic. While all of our processes and day-to-day translated to full remote with little to no changes, without the re-centering and catching up and personal side of things we got monday/friday people were more on edge and collaboration/unity suffered. It's been a tricky thing to recoup, but we're finding doing more casual video calls here and there is helping.