Depends on what you mean by “free speech”. If you mean absolute free speech in the sense that all voices are present and heard, then no, because it blocks out the hateful voices. But you can’t have that while allowing for hate speech either because hate speech silences the voices of its target. So no such thing can exist. If you want a platform with “free speech”, you need to decide who gets the freedom and how much of it. There has to be a limit somewhere, whether it’s explicitly set or not.