In my social circles, at least, the answer is yes. I live in a major city with many people from diverse backgrounds. It might be different in areas where tech people make up the majority.

I know for a fact that I wouldn't have been invited to some parties or met some really fun people if I didn't have Instagram. You don't have to post or be very active; you just need to have an account.

No, this is not true.

News to me. But I just left my 20's so maybe I'm late off the boat.

I'm not installing anything Meta for any potential date. maybe Twitter but that's already pushing it.