It's common. Here's a fresh example from a blue check.
Re:Kanye West is buying Parler
by DerekBickerton on Monday October 17, 2022 @12:20PM
(#33235764)
I believe that's because Facebook gave itself some actual rules and then enforced them, regardless of who said it and who was the subject of the post, they treated all groups the same. Twitter or Reddit do not.
Are you sure? It's been a few years since I purged all social media from my life, but three years ago, it was going around and seemingly well-documented with screenshots that saying "men are trash" would get your post auto-deleted and your account sanctioned on Facebook.
This seems like another of those things where extremists on all sides believe they're being uniquely persecuted and some other side of the spectrum is given free reign, when more likely than not most mainstream platforms are pretty centrist.