The right to free speech means you cannot be persecuted for what you say, it does not mean you are entitled to say it on whatever platform you want.
And free speech is not absolute. Amongst the things it does not protect are:
> libel, slander, obscenity, pornography, sedition, incitement, fighting words, hate speech, classified information, copyright violation, trade secrets, food labeling, non-disclosure agreements, the right to privacy, dignity, the right to be forgotten, public security, and perjury.