It is also first in the Distrowatch rank
https://distrowatch.com/table.php?distribution=cachyos
I distro hopped to it from Bazzite a couple of months ago, and I could not be happier.
If you try the installer, be careful when selecting multiples DE/WM as the conflicts were not listed anywhere for the installation process.
Picking a single environment and then adding the others later was what worked for me.
There are supposedly reductions in “cruft” from legacy CPU instructions, but I’ve never seen actual data to prove it helps that much.