When a new user is created using useradd, the contents of /etc/skel are copied to /home/newusername. You may notice that /etc/skel on a default Fedora install has only hidden files - mostly standard bash configuration files (this is pretty common from distro to distro). Those files then have their ownership changed to newusername.
After first logging into a new Fedora install, you'll probably notice that your /home contains directories like /home/desertrat/Public, /home/desertrat/Music, /home/desertrat/Photos (or is it Pictures?). Those must be created by GNOME, I'd assume - they're not in the skel.
"What is freedom? To have the will to be responsible for one's self." - Stirner