I haven't logged on to Facebook since March, and frankly I don't miss it. I'm not happier since I've instead filled that time with vapid alternatives such as HN.
I've deleted my Facebook and Instagram apps from my phone since last Tuesday.
Much happier.
I like the potentiality of being able to log into it with the Browser, but giving myself just enough resistance to not go through with it. I feel like it gives me more power to my decisions.
Also, I have lots of good friends and family who user Messenger frequently and I'd hate to miss their messages on that.
Also, related, I've removed notifications from nearly all my apps. That's nearly the same effect as removing the app altogether from my phone.