I'm firmly in camp "office time sounds wonderful" because I live alone, and as it turns out, not having any humans nearby is downright depressing. I'm also somewhat introverted (weird, right?) and while I was living with other people, I desired quite the opposite; staying at home was much less distracting than being in the chaos of a shared space most days.
So which do I prefer? Ehh, it depends. I'm not planning to live alone forever, it's just where I'm at right now. I'd imagine others are in a similar boat; we're different, and not necessarily constant either. So, as much as I encourage opening the offices back up and will take part in that space if given the chance, I wouldn't force that on anyone. I think the responsible thing to do is to measure performance rather than seat-in-chair, and so long as everyone's pulling their weight, let each employee make their own informed decision. It's their health on the line, after all, and healthy employees do better work.