About Matrix Matrix is an open protocol for decentralised, secure communications.
Matrix Manifesto We believe:
People should have full control over their own communication. People should not be locked into centralised communication silos, but instead be free to pick who they choose to host their communication without limiting who they can reach. The ability to converse securely and privately is a basic human right. Communication should be available to everyone as a free and open, unencumbered, standard and global network.
Well, due to the nature of the Fediverse, no one can reliably list all the server in existence. They can merely list the most popular ones, much like how you can’t list all the Lemmy instances. A list I used to pick my server is https://joinmatrix.org/servers/ , though you might want to look up the server’s reputation before joining. Please do check it out! I believe that someone on Lemmy has a much higher probability of liking Matrix.