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Switch to a Fully free Operating System
(piefed.social)
From Wikipedia, the free encyclopedia
Linux is a family of open source Unix-like operating systems based on the Linux kernel, an operating system kernel first released on September 17, 1991 by Linus Torvalds. Linux is typically packaged in a Linux distribution (or distro for short).
Distributions include the Linux kernel and supporting system software and libraries, many of which are provided by the GNU Project. Many Linux distributions use the word "Linux" in their name, but the Free Software Foundation uses the name GNU/Linux to emphasize the importance of GNU software, causing some controversy.
Community icon by Alpár-Etele Méder, licensed under CC BY 3.0
Iirc, the list is of operating systems that the FSF recommends. You could have a system running 100% free software, but the FSF won't recommend it if the distro makes it easy to theoretically install proprietary code. It's fine to run such a system, but the FSF won't recommend it.