I still have a lot of friends that use it daily but it's all for things that don't hold a company with a 1T market cap.
Anecdotal data:
- Facebook usage from my feed it's just older family members posting cheesy political posts and selling items on marketplace
- Instagram became a selling channel for brands, be it with their accounts or with "partnerships" with meme/influencer pages. I see less and less content from friends. SO has a professional account there, she always has the feeling that if she doesn't pay them her posts are rarely seen, even by people that follows her. I'm using it less and less every week.
- I still use WhatsApp a lot, and I'm quite scared how they could leverage their ad network with my private communications to improve bottom line
- I don't use and don't see the point of downloading Messenger, Threads, Reels, Lasso and any of the other weird knockoff apps they release every few months
I remember the last chapter of Chaos Monkey and the author hit a very good point that Facebook bought their extension ticket of relevance two times with Instagram and WhatsApp, since then (if you disconsider Oculus) the company didn't manage to create or acquire their next ticket. Maybe they're going the same route as MySpace?
edit: small typos, posted from phone