Case in point being downgrading emacs which sounds to me like a question about the Fedora distribution of GNU/Linux -- but that may well be of interest to other Emacs users who run Fedora.
We do have existing tags for particular OSs. As well as the expected [microsoft-windows] and [osx] I can see there is a populated [ubuntu] tag; so a [fedora] one would not seem unreasonable.
The following questions are related, and didn't conclusively answer my question for me (but I'm now leaning towards saying that such things should be on-topic).
- Are questions about configuring an Operating System to work better specifically with Emacs on-topic?
- Questions where Emacs is only incidental
A somewhat analogous problem which springs to mind is the way that Debian separates the parts of Emacs out into multiple packages, such that users (a) might not have the
.el.gz elisp source files, and (b) might not have the info manuals (the latter are not only in a separate package but, on account of a disagreement over licensing, aren't considered Free by Debian, and consequently are even less obvious to users). All of which is (a) completely specific to Debian, but (b) of concern only to Emacs users.
Personally I think the Debian issues should be on-topic for Emacs.SE, and with that in mind it seems reasonable to me that other OS-specific packaging issues would be on-topic as well.