I will never work in an office ever again, period. Never, ever. It’s insanely unproductive for me.
As to the supposed bouncing ideas off one another or overhearing something useful, that has never — and I mean that literally, never — happened to me. Not even once. I’m skeptical that it is a thing for anyone. I suspect those are just MBA fairytales. I’ve asked my partner and friends and it also has not happened to them in their working careers (all in excess of a decade).
No office for me. I like getting my work done, not listening to people prattle for hours about sports or their cats, thank you.