Ask HN: Are you working in a distributed team?

I am curious if you’re working for a tech company, if your product / engineering team is co-located I.e. same office. And if so, do you think this the optimal model. I understand the way remote companies like Gitlab are structured, so the responses I would be interested in are more for ‚established‘ companies where it’s been decided there is a return to office mandate. Do you think this is most effective when all or some of the team is located together? Do teams which split by geography e.g. same timezone split or different timezone split have advantages or disadvantages in your experience.