As a trans occasional-user of Facebook, I never saw any censoring of transphobic hate speech. During any administration, I was fed very many posts from nominally pro-queer visibility pages that existed primarily to bait interaction from vehemently transphobic or homophobic users. I saw everything you could imagine stated with zero repercussions from site staff or even the consensus of other users.

They made it completely legal now, my understanding was that it used to be at least nominally against the rules.

Totally agreed that it has always sucked though.