At times like early covid there wasn't much facts and evidence available. Back then masks didn't stop the spread of the virus but vaccines were supposed to. Who decides what the facts are in times like that?
You rely on what you know and check if the assumptions are still correct when you have more information at hand. That's what government agencies are supposed to be for.
Paid fact-checkers spread across all member states.
"The new Code will extend fact-checking coverage across all EU Member States and languages and ensure that platforms will make a more consistent use of fact-checking on their services. Moreover, the Code works towards ensuring fair financial contributions for fact-checkers' work and better access to fact-checkers to information facilitating their daily work."
Essentially, everything will have Snopes attached to it. Including political ads and other forms of advertising. As well as more blatant propaganda.