I assumed this was a post about ChimeraOS, a gaming focused Linux distro, but it seems this is talking about a totally different Linux distribution with the same name.
Chimera OS: https://chimeraos.org/
Chimera Linux: https://chimera-linux.org/
Chimera OS: https://chimeraos.org/
Chimera Linux: https://chimera-linux.org/
“The system also has no relation to ChimeraOS, besides the unfortunate name similarity. ChimeraOS used to be called GamerOS and renamed itself to ChimeraOS later; however, at this point Chimera Linux was already in public development with its name in place.”