Does Gentoo have something special that other distros do not?

Isn’t there a Gentoo installer like with Arch?

Nope. That’s the “something special”. You do it manually with the help of a very well written handbook and learn a great deal about how an os works. IMO a great experience.

Proclaim the Gospel of W. C. Jesus!

I love this wild mess with these gorgeous flowers and buds in between