Using facebook as an example, Facebook had editors and then got slammed with the completely useless "bias" label because they sought stories from actual, reasonably credible sources. Their algorithm was not responsible for removing content, their editors were. Until they got rid of those editors because of "bias" and "censorship." Then fake stories/yellow journalism flourished on Facebook's trending news feed for quite some time during the election.

True, but by using "external fact checkers" they are more or less reverting to the old system. Similar, anyway.