I also do a lot of "watercooler chit chat" over slack and, to a lesser extent, voice chat. I don't need to be in the same physical space as my coworkers to do that. I mean, before starting my career, most of my tech chit chat was online, since my offline friends at the time were typically not too interested in tech.

What I do find problematic is when the majority of a company is in the same physical space and only a few are remote, as then the remote people tend to lose out.