But working from home, only home, for 16 months now? At macro level, it drained me of motivation after a few months - and it took a lot of self-examination to realize I'm no longer at my peak and why, because the change was slow and subtle. I lose this internal intuitive feeling of what we're doing and more importantly, why it matters. Everything is just words on the screen; success or failure, it's just an email or slack. There's no energy and pride to soak in when we wrap up a project. And most of all, I recognize I'm highly motivated by successful peers I respect; and I just don't get to experience that the same way. I see the good results/work of my peers, but I don't get to "see them be successful / good at their job", which is subtly but critically different thing, more of a continuous and passive experience - what you call "being surrounded by smart people doing interesting work" really rings true.
So while any given morning I'd rather stay at home, I recognize that in long term, I'm suffering from only staying home.
I cannot IMAGINE what an extrovert is feeling these days :-/.
(Oh and yes, I love them to death but there IS such a thing as "too much contiguous time spent with my kids", for me at least it turns out... but office is not necessarily the solution for that:)