Yeah, as someone who is on the extreme end of introverted (not shy, just happy to be alone) this was the case for me. I got a membership to the co-working space, did many of the social events, attended some meetups even, but the connections just wouldn't stick.

On the flip side, when I have worked at an office I have always come out after a year or so with a couple close friends in the organization. Because of the physical proximity many of the shared experiences are more intense. Putting out production fires, after work beers, dropping in on a co-worker to talk about the product, etc, lead to longer lasting relationships.

Developers have a tendency to assume that technology can solve more of our issues than possible. I have plans to start my own company with a bit more savings and network under my belt, and I will be doing zero remote, assuming I can afford to.