Hmm, that page appears to be recommending installing third-party tools. I don’t have any personal experience with them, but I think I’ve seen a few complaints about them not working properly with Fedora Linux on ask.fp.o.
I was thinking more along the lines of some minimal command-line examples. Can’t a user just type btrfs something something ... to create a snapshot and btrfs something something ... to restore it? I thought I saw a post from Chris Murphy a while back that showed how to do that (but I’d have to hunt for it).
In fact, showing how to do the above from a dracut rescue shell might provide a good “foolproof” recovery solution in case someone totally bricks their system.
Edit: I think I found the post from Chris that I was thinking of (particularly the “if you aren’t using snapper” section):