Trisquel is not completely reproducible. They are working on it, but its far from done yet.
So, even though they are fully open source, they cannot be F-Droid approved.


GitLab
debdistutils / reproduce / trisquel ยท GitLab
Reproducible builds of Trisquel GNU/Linux 11 aramo - https://trisquel.info/ - https://gitlab.com/debdistutils/debdistreproduce