I think we have to ask if this won't have a chilling effect on open discussion by moderate voices. I'm subscribed to the channel of an M.D. on YouTube who discusses COVID-19, vaccines, etc. He is very careful to (repeatedly) point out that he is vaccinated, he has personally vaccinated hundreds of patients, he encourages everyone to speak to their doctor and follow their recommendations, believing that the vaccine is…
Society in general has been making chilling moves away from free speech, and this has been accelerated by the pandemic. I hope the pendulum will swing the other way, but it's also possible to cross a tipping point where we just lose our way.
In reality though, laws have been limiting speech for hundreds of years, and those laws and judgements are enforced by the government. The idea that it is sacrosanct and is (and should "continue" to be) unabated is already not what happens. The usual example is about shouting bomb in an airport or fire in a crowded movie theatre but those are more about mischief than any freedom to say a thing (you aren't punished for the words alone). However, Libel and Slander laws exist and have for a long long time and are limits on free speech.
I'm not in favor of draconian laws designed to chill debate but it's important to recognize that limits already exist and how we navigate where to draw the line is the key I think.