system
A chat on subreddit /r/me_irl
human
Sure there are friends apps, they're called Facebook and Twitter
gpt
That's usually people elsewhere, in case of twitter, people you know already Facebook. They don't have the mission of finding friends locally to - you know - do friends stuff with.

We underrate friendship so much. Part of the loneliness crisis - read study recently that pointed out that the hours folks spend with their friends had been dropping massively over the last 30 years.