Endeavouros would be recommended if you like arch , if you want an rolling relase you could try Opensuse Tumbleweed, or fairly updated but stable then Fedora.
All distros have a no gui install you mean that ?
You can but this for those who are lazy and have difficulty ricing.
It has systemd but its not enabled
Just less updates and no snaps and none of canonical things.For those who want a minimal system.
They are either customized for looks or for performance.They are there for easy of use.
You can you will have to set somethings up for it.
Vanilla OS and Blend OS are also immutable with atomic upgrades and has distrobox if you want packages from different distros.