That's a malformed question. Fedora is a GNU/Linux distro. What you mean to
ask about is operating systems which are compliant with GNU FSDG. And the
advantage is simple: none of the official channels of software distribution
for these systems contain any proprietary software. That's the only advantage
the FSF strives for.
By the way, Fedora actually has a very clear policy which only allows
proprietary firmware in its repository. You can blacklist these firmware
blobs and replace Linux with Linux-libre in Fedora using a package called
"Freed-ora":
http://www.fsfla.org/ikiwiki/selibre/linux-libre/freed-ora.en.html
Red Hat Enterprise Linux, by the way, has roughly the same policy as Fedora.
I'm not entirely sure, but I think the "one exception" the FSF speaks of is
to do with Red Hat trademarks.
> would I be able to use alternative drivers to nvidia drivers so that I
> still can play games under linux via steam or wine?
Probably, but that would kind of defeat the purpose of using a completely
libre OS.
