Operating System Political Compass - Updated version
That top left hand corner could be filled with a selection of these: www.gnu.org/distros/free-distros.html
List of Free GNU/Linux Distributions - GNU Project - Free Software Foundation

I would not really expect it at the top. It may fit the definition of authoritarian in some ways but I almost certainly wouldn’t expect it to be corporate.
I ran Parabola for a year. Definitely authoritarian