This is how it goes, supposedly: as soon as a channel appears that allows to break free from the mainstream propaganda BS, "anti-mainstream" propaganda BS inevitably appears there too. This seems to be the plague of any social media, centralized or not.
Why? "Bot farms" have been a thing for over a decade already. Regardless of how free your speech is on a platform, there always will be some whose speech is "freer" if they say the same as various govt-agencies-backed bots, trolls and "useful idiots" herded into a particular place online to shape dominating "public opinion" there.
How to fight this, besides being fully standalone? Guess what: freedom of speech is something more than ability to choose which bot farm to join. Think about it.