My job told us a year or two ago that our position is now officially fully remote. It wasn't at all pre-pandemic. It would probably be difficult for them to try to make everyone come back now but with the random seemingly coordinated country-wide push that's happened recently, I'm wondering if they'll try.
I can't say there's a single thing I miss. 100% benefit imo. Before I moved my office was in my bedroom and now I have a different room for it and it feels a lot healthier, to your point about work/life separation