After you figure out how to properly partition your disk, you learn how the entire setup is actually quite simple Basically, Mount partitions, pacstrap to install the base system, generate fstab, chroot in, create a unprivileged user and add it to sudo, setup grub, configure internet, exit chroot and unmount, reboot into the newly installed system, configure X11/Wayland to your liking
Meanwhile my first Gentoo system… I was expecting to be not so bad… Holy f I was wrong