Elon Musk has conveniently given other social media platforms a playbook for how to suck up to the incoming Trump administration: https://www.wired.com/story/meta-ditches-fact-checkers-in-favor-of-x-style-community-notes/
Discussion
Never seen useful note from "fact checkers" (mostly obvious, sometimes wrong).
I have seen very many useful community notes on X while I was there - including on politicians and "respectful" publications - which no "fact checker" would ever dare to do.