I just found about this distro, which is relatively new (2021). Its specificity is that it doesn't features any GNU software by default, which I find interesting.
People are going to focus on the GNU free aspect, and I like that about Chimera. That is not the right way to understand the project though.
The creator of Chimera Linux was one of the core contributors to Void Linux. Chimera is an attempt to create a distro with a similar technical philosophy from somebody that thinks they can do better with slightly different choices.