It's your Operating System.

The Fedora desktop experiences you know with an additional layer of security and reliability.

If you prefer an alternative desktop environment such as Xfce, Cinnamon or MATE you can download a Fedora Spin for your preferred desktop environment and use that to install Fedora, pre-configured for the desktop environment of your choice.

Fedora Labs is a selection of curated bundles of purpose-driven software and content as curated and maintained by members of the Fedora Community. These may be installed as standalone full versions of Fedora or as add-ons to existing Fedora installations.

The Fedora Alternative Downloads are either special-purpose - for testing, for specific architectures - or are more standard versions of Fedora in alternative formats such as network installer format or formatted for BitTorrent download.