This creates the illusion, if one takes those countries media for real, that in other countries the disease is not as ravaging or non-existant. One should trust democratic countries data more and signal distrust on data/ positions / declarations from authoritarian regimes.
This however is not happening much on online plattforms, were one dictators "cheerful" lies are equally loud represented next to a loyal servant of a democratic state giving "grim" news.
The platforms thus help to creates the impression, that authoritarian regimes are dealing "better" with the situation and those wishing for a return to the "before" times, seeing those before times seemingly alive, thus steer towards totalitarian propaganda.
Lies for money subvert the system allowing to sell lies for money as a business model.
This problem solves itself.
If a government is caught lying, its previous statements to a fact should be auto-corrected and future statements be overwritten with a extrapolated truth, given by someone proofen to be trust worthy.