It is a problem we have not faced in free societies but do now. It is the suppression of information and its replacement by propaganda with no connection to reality. It is the world of Putin's Russia, a world we in the west have not experienced.
And it is not necessarily driven from the top down although casting doubt on what constitutes a fact is core to the maintenance of power in a dictatorship.
There is pretense that changing Facebook's algorithm from favoring profitable self confirming nonsense to being balanced with factual posts is some an obscene from of censorship rather than a fix for a broken algorithm. This as absurd as claiming Google is censoring when it changes it's search to give results the user wants because no user wants to be fed inaccuracies by either Google or Facebook.
Incredibly we're now saying it's censorship just to adjust a ranking such that propagandist nonsense (that the user didn't want) is no longer quite the top result.
Indeed the argument has now deteriorated into the surreal position that no-one (e.g. Snopes) should dare even post corrections to politically motivated lies because that is somehow censorship. And certainly no-one should promulgate those correction let alone use them. This is exactly the Kafkaesque logic that reveals the underling motivation is actually the exact opposite of free speech.