I would have said the same a few years ago, but my experience has drastically changed.

My family has a whatsapp chat (yes, Facebook, but could easily be Signal) where all the child photos, news sharing, etc happens.

Of my friend group, almost no one actually posts on Facebook anymore. Looking at the feed now, it's: - the one guy that actually does post the occasional rant - gaming group post - someone is going to an event - skeptics group post - event I'm going to posted an update and then a bunch of updates from companies or organisations I follow