Freedom of Speech does mean freedom from consequences, at least from any government that recognizes that freedom of speech. The phrase, “Freedom of speech is not freedom from consequences” refers to the ability of private entities to take negative actions against speakers engaging in free speech, simply because those negative actions were within the private entities’ rights all along. For example, the ability of any Lemmy instance to ban anyone they want.
Regardless, speech that is actively harmful, is false, or meets certain other circumstances (depending on which government you’re looking at) may not be recognized as covered free speech. Tucker Carlson is probably about to do a bunch of speech that is not covered by freedom of speech, which is why the expected sanctions will be justified.