For several years I've been jealous of Suse for snapper.  There's been a snapper package for Fedora for some time, but I don't think it set up the subvolumes correctly.  I tried following this guide (warning: chrome doesn't seem to like this page)

I setup everything but not any timers - I'm not looking for automatic periodic backups.  

I had thought it would be really great to be able to undo dnf updates - there is a  python3-dnf-plugin-snapper.

But we already have dnf history undo, so no I wonder, is there really any point?

I suppose one use is if my system became unbootable I could somehow mount a snapshot.  OTOH, I can't recall the last time I would have needed this.