I used to have auto-cross posting enabled from Twitter back when that was a thing so all those old tweets were still sat on Facebook.
Not any more. I cleared them out along with all the other cruft like which books and films I'd read and watched.
I was hoping the repetitive monotony of manually deleting status updates might cause me to drift off like a digital version of counting sheep.
I removed everything I could to do with Facebook ads and tracking as well as stopping any apps from using Platform so that I can't use Facebook to log in to anything.
It's about as close as I can get to deactivating my account without actually doing it.