Guix contains font-ubuntu, which is licensed under the Ubuntu Font License v1.0, which has not been approved by the FSF, and is considered nonfree by Debian and Fedora, according to < https://en.wikipedia.org/wiki/Ubuntu_(typeface)#Ubuntu_Font_Licence>.
bug#48802: Possibly nonfree font (font-ubuntu)
Ron Nazarov via Bug reports for GNU Guix Wed, 02 Jun 2021 15:09:54 -0700
- bug#48802: Possibly nonfree font ... Ron Nazarov via Bug reports for GNU Guix
- bug#48802: Possibly nonfree ... Leo Prikler
- bug#48802: Possibly nonf... Leo Prikler