The generation of new Gnu / Linux distributions has made many users enjoy and learn about Linux and Free Software. But it is true that many of them, if not almost all of them, are not free.
Many distributions contain proprietary drivers or some program that does not have a GNU license.Therefore, the Free Software Foundation or Free Software Foundation decided to create a website where the distributions that it recognized as free were specified, totally free distributions.
The list of totally free distributions is surprising and eye-catching, because none of the big distributions are free. Namely, Debian, Slackware, Gentoo or Arch Linux are considered by the FSF itself as non-free distributions. In fact, I remember that there was a certain controversy with Debian because the difference between being free and not being free was based on a repository that could be eliminated by users. The recognized free distributions are: gNewSense, Ututo XS, Blag, dragora, Trisquel, Dynebolic, GuixSD, Musix, Parabola and PureOS.
PureOS y gNewSense They are two distributions that are based on Debian but that eliminate that problematic repository and also add privacy and security tools.
triskele It is the only free distribution that is based on Ubuntu and XS it is one of the first free distributions and the only one that is based on Gentoo. Parable is a distribution that is based on Arch Linux and Blog it is its similar but based on Fedora.
Surprisingly, there are two distributions dedicated to the world of sound and audio editing. These are music y Dynebolic.
Any of them they are worth trying but personally I would not use them. They are all great projects, but many of them are abandoned and that implies a lack of security. Possibly the two most up-to-date free distributions are Parabola and PureOS, but others like Trisquel or Ututo XS have not been updated for years.
And if you have doubts, you can always go to the official FSF website, a free website and with all the information you need to find a totally free Gnu / Linux distribution.
Trisquel, according to the official website they are about to launch version 8, the message is from 11/12/2017, so it should not be so abandoned.
Trisquel is based on LTS versions of Ubuntu, so it receives regular security patches. The project is not dead, they continue with the development and the community they have, although small, is still active.
On many occasions the fsf does not endorse distributions that under the user's choice can be composed only of free software because they also include non-free software in their repositories, but in advance it can be said that one can have a distribution like Debian or Gentoo with nothing proprietary software but it is an option, in the distributions endorsed by the fsf there is no open door to the use of proprietary software.