I realise we are both sharing anecdotes, but I was at GitLab from about 250 employees to 1500 or so. It was all remote from the beginning, and it definitely wasn’t all senior, fully ramped employees with pre-established work social networks in Silicon Valley (or any other single place for that matter). There was mentorship, as well as social events and travel.

I’m sure your experience is factual, but maybe it’s not a universal truth or something generally applicable about remote work.

One thing for sure I would feel down about is if I moved somewhere I didn’t like to advance my career, and then everyone there started working remotely making the whole move pointless.