I think this is really well said. Instagram is probably the closest for me though I use it far less.

I consider Facebook to be the worst of all worlds. Frankly

They don't show you what your friends actually post. Someone saying "hey - I'm in the parking lot at some place, I need help moving this thing" 5 minutes ago? You might see it on your feed in a week

They engage in reputational decay https://news.ycombinator.com/item?id=1775182 (see also, photo tagging)

They've cut off access to your friends https://news.ycombinator.com/item?id=4151433

It's a company involved in lots of OTHER things which don't make it a good netizen https://news.ycombinator.com/item?id=10791198 (oh and their own cryptocurrency in Libra, that's fun)

"Dumb fucks" https://news.ycombinator.com/item?id=1692122

Edit: You get banned at any time while the obviously horrible thing you report doesn't get taken down. That's not sustainable. It's not a thing where you can actually physically keep in touch with people, either nominally strangers or the best of friends