> Get roommates. Again, relationships.

I'm with you so far as the physical presence, having done both and now gone back to hybrid (few hours remote, then on-site for about half the day) the rapport I have with my colleagues is almost entirely based around in-person interaction. I don't think anyone calls or IMs people to chitchat the way you do when you bump into someone in-person. That matters.

That said, living with a roommate is probably going to be irrelevant to OP's career. Unless you're rooming with strangers, which is ten flavors of gross.