That's easy enough to check, compare rates in denser countries/states to more spread out ones or cities vs. suburbs. I have a hunch that the correlation won't be there but it should be interesting either way.

Edit: doing a quick look around, this article using the American Time Use Survey shows a small increase in socialization for people who live in cities, but only a couple of minutes a day. https://www.citylab.com/life/2019/10/american-time-use-surve...