It's got many flavours! Awesome!

The actual term is "distro", as in your own distribution of Linux, but it just means that anyone can make their own Linux flavour by say, changing the theme, and putting different apps.

Some distros make it friendly for beginners, or something ultra-powerful, but scary looking, for super computers.

Just like Windows and Mac have a different desktop, or interface, Linux has many different ones too! Some distros have a desktop that's unique to the distro while others use ones that are common across multiple distributions.