In the lead-up to the 2016 election, I began to find that any time I posted anything with the words "white evangelical(s)" in it, Facebook took the posting down.
Meanwhile, I see on an ongoing basis all sorts of obvious right-wing disinformation being circulated freely on Facebook, with no attempt that I can see made by Facebook to censor that disinformation.
More than "just the algorithm" is at work in Facebook censorship.