None of these are like the allegations of election tampering the article discusses, which is squarely in the realm of First Amendment-protected speech in America.
(What’s that you say? The truth of claims about the medical efficacy of drugs are actually hard to ascertain? That’s true, but you’ll note that the standard of truth required by law is easy to ascertain — the question is not whether your drug cures cancer but whether you’ve gone through a specific FDA-approved process to test whether it does, and passed.)
In court trials, the smallest details of truth are liable to be deliberated and argued over extensively, often producing outcomes that satisfy no interested parties.
It’s easy to have an opinion about what is an “outright lie”, it’s more or less impossible to prove it, and it is literally Orwellian to establish an authority to preside over it.