They might invite you to some gaming session on the spot, or some time later, which is huge for maintaining connection.
Even if they don't, the weak-ish bond of having a common interest is stronger if you're interested in the same specific game, than if you're just interested in gaming in general.
Now you could say, "there are already other versions of these sorts of games out there". True, but this brings them all under one roof, so to speak. One consistent interface through which you can play Connect 4 or Yahtzee or or whatever you choose. It's also developed by Nintendo, so there's going to be a certain level of polish you don't usually find in some random indie developer's release. I think it's going to be a killer title, especially if lockdowns continue to drag on. My only question is why they didn't try to accelerate the release date on it to catch more people stuck at home (though maybe it was considered and they had a good reason not to).
https://www.nintendo.com/games/detail/clubhouse-games-51-wor...
You actually use your phone as an input controller into the game server (Quiplash and drawful they like). Check the setting for "child friendly". Its ends up being pretty fun. (We've been playing a couple hours the last 4 weeks)
A brief description of the game here: https://arstechnica.com/gaming/2020/04/the-games-getting-us-...