It would be great to read about the differences to matrix.org - does anybody know a good explanation / comparison? I can not decide which alternative to use be

It would be great to read about the differences to matrix.org - does anybody know a good explanation / comparison? I can not decide which alternative to use because there are so many differences and I lost interest in researching all the details, so it would be great if somebody with knowledge would like to write about that and provide an overview. As a user I would like to see a tool without censorship, but where I can ignore posters I do not like, where I still can find everybody, but also have private encrypted conversations with my peer groups and nobody is trying to profile me based on my interests. Ads would be ok, but no tracking (use tags for targeting, not user data).