I use Facebook more than ever these days but oddly for none of things I used to use it for. It's now got some obscure technical community groups that are too niche and too small for reddit or discord. Facebook Marketplace has replaced craigslist. My friend feed is totally incidental to my use of Facebook.

Personally in my circle I still use Facebook messenger service - my extended family has a group chat and some of my friend groups still use messenger chats (I'd say post pandemic discord is used more then messenger now) my parents use messenger to video chat with their grandkids. It's essentially become skype. The actual facebook.com friend feed etc. is essentially dead for me at least.