Facebook (if you don't use newsfeed) is a very useful product.

Local events - check

Local groups - check

Small time music bands/artist/performances/etc - check

Buy nothing groups where I can get rid of something I don't use - check

Groups for mom with kids to get organized for some kids event - check

A library having a read together event for a kids book author - check

I'm happy I don't have to use FB, but my wife uses it all the time, she just avoids newsfeeds and all the click/rage bait parts.

Is that in the US?

I’m genuinely asking, it wasn’t rethorical - none of that exists in my corner of Europe anymore. Businesses, indie stuff and local stores use instagram, groups are WhatsApp, second hand stuff has its own app.. facebook seems to be just the >60 year old crowd.