This answer by the developer of Rufus clears up this common misconception amongst Linux users; copying an .iso file to a USB drive with dd is the correct way to create a bootable drive and has the same result as burning the .iso to a physical disk.
TL:DR; This works with basically all Linux Distros, but only because of a hack/software called isohybrid.
TL:DR; This works with basically all Linux Distros, but only because of a hack/software called isohybrid.