The fediverse has too many children who cry and throw a fit when someone expresses the wrong opinion, there are very few healthy function adults.
People who promote Mastadon and even Lemmy claiming freedom because of its federated services, is a lie they use to push tyrannical censorship for people having the wrong views, or wrong think, so they use services like ActivityPub where people are not allowed to prove them wrong, due to how traumatizing it is to read words on the internet that they don’t like.
No matter how bad centralized social media can be, at least there people have to be adults and handle criticisms and being corrected or challenged for what someone posts. There is no escaping all the evil cruel people who disagree and believe differently.