There is no such thing as free speech. Even here we are under private censorship. As most major networks and media are privately owned and controlled. Meaning that they aren’t going to post stories or let news run that doesn’t benefit them, tell a side of the story that goes against them, or doesn’t fit their narrative.

“State” suppression of free speech is present in socialist countries, but you need to look at the conditions inside of them. If you successfully pulled off a revolution and are building socialism, why would you allow reactionaries, counter revolutionaries, and foreign capitalist powers the ability to build discontent and gain the ability to challenge you?