I am not a young person but I am a graduate student with a lot of young friends. At my university, Facebook is primarily used as a carefully curated photo album and an event planner. The genuine social interactions on Facebook have moved into Messenger. Photos and videos that are not profession/parent friendly are only shared in group chats. Most people are in 3 to 10 active group chats.

A few years ago Facebook Groups were popular at my school but now only a few of the largest ones are active. When I transferred in to finish my undergrad, the groups were essential to meeting people. Now I think it would be much harder to meet like-minded students online because all of the genuine conversation is in semi-private group chats.

According to something I read, young people (<22yo) use twitter & snapchat for on-going daily updates and reserve facebook for bigger events like a family get-together.