[BaseballPhysics]

Just because you define "decentralized" as strictly "peer-to-peer" doesn't mean everyone does.

Wikipedia literally uses the word "decentralized" to describe the Fediverse, which would seem to violate your personal definition:

https://en.wikipedia.org/wiki/Fediverse

> While a traditional social networking site will host all its content on servers owned by the parent company, the decentralized social media sites that make up the fediverse allow any individual or organization to host their own servers (referred to as an "instance").