The recently-concluded Alex Jones trial is an interesting point of reference for where free speech and the law are colliding in America today, and in this Wild Wild West of new media saturation that we're all living in.
https://www.reuters.com/business/media-telecom/jury-alex-jones-defamation-case-begin-deliberations-punitive-damages-2022-08-05/
This case is a bit of an outlier, since it's so rare for anybody to be held accountable for false speech in America. The Defendant, Alex Jones, told lies about a mass school shooting that happened 10 years ago. The jury found the lies were damaging enough to the victims of this atrocity that it supported a legal judgment of nearly $50 million.
The Alex Jones case stands for the following idea: If your "opinion" is that a bunch of dead kids are "crisis actors," and that their parents aren't really their parents, and you repeat the same thing over and over again to an audience of millions, then that's not really an "opinion" at all, it's a lie that's bad enough to warrant legal punishment.
I agree, while most opinions should be protected, there is a line somewhere where lies cross over to the point of heedlessly destroying reputations and actually inciting violence. Some of the parents of these slaughtered children actually had to go into hiding from the threats they were receiving from Jones's deranged fans.
It takes significant time for any case like this to make its way to trial - 10 years in this case. But it takes no time at all for an unhinged tweet or radio rant to go viral. That's a problem. And by the time the case is heard, the damage has already been done.
Apart from rare and unusual defamation cases like this one, we're in an era where the traditional media methods of fact-checking and vetting a story before it gets published only apply to outlets that willingly hold themselves to those standards. For any media outlets, or social media personalities, who don't have such scruples, the only check upon their ability to brazenly lie is their audience's own lack of gullibility, and the fact-checkers who are always one step behind them.