Matt Taibbi is always worth a read.
2022-02-01, by Matt Taibbi. Emphasis added.
The fact-checkers who flagged Paul Thacker's British Medical Journal article about a Pfizer subcontractor for Facebook admitted they police narrative, not fact
...The significance of the British Medical Journal story is that it showed how easily reporting that is true can be made to look untrue or conspiratorial. The growing bureaucracy of “fact-checking” sites that help platforms like Facebook decide what to flag is now taking into account issues like: the political beliefs of your sources, the presence of people of ill repute among your readers, and the tendency of audiences to draw unwanted inferences from the reported facts. All of this can now become part of how authorities do or do not define reporting as factual.
WIND: who checks the fact checkers?
The idea that there are neutral “fact checkers” today is for idiots and children.