Guix is more similar to Debian, with only 'Free Software' applications in the main archive.
For proprietary codecs, firmware and so forth there is the Nonguix channel. Again, this is fairly similar to how distributions like Ubuntu have handled this line in the past.
I need Chrome and also have some games loaded using 'channels' - heh heh - another post:
No. While the core repository (we call that a "channel") only includes free software, there are no restrictions whatsoever on what you can or cannot install with Guix.
Guix makes it trivial to add third-party channels (such as nonguix, guix-science-nonfree, or other free software channels like guix-cran or guix-science) or extend Guix in an ad-hoc fashion.
You can also build an entirely private collection of packages if you want; from a file, from a git repository, from a Guile expression, etc.
