Please clearly define what you mean when you say "free speech." It's an overloaded term that confuses people every time I see it in this context.
I don't support the artificial broadcast/amplification of content that is hateful, bigoted, misinformation, etc to thousands or millions of people that otherwise wouldn't see it, were it not for an algorithm that picks it up due to it generating more eyeballs to sell advertisements to.
If we, as a society, can manage to muster the courage to regulate social media algorithms, then we can start talking broadly about free speech rights. Until then, people who want to post vile garbage should be banned permanently and forever from participating in social media sites that use unregulated and opaque algorithms. They are, of course, still free to post whatever they want on their own sites, blogs, or on social media that doesn't make use of opaque algorithms (e.g. some Fediverse sites).