Help with snapper

[Edward]

I don’t understand snapper, when i create snappshot by the name: Before Firefox install and install firefox and then restart and in grub restore that snapshoot i come back to system but i can still find firefox config folders leftovers

or

if i create folder on desktop and restore snapshoot that folder is still there

My question is, what snapper actually does?

[filo]

The default snapper config does not include the home directory (actually btrfs subvolume), and so all the personal configs.
You could add that subvolume, but it would be a risk: a restore would rollback also the work done (e.g. docs) after the snapshot.
Snapshots are supposed to help you on system troubles, e.g. a wrong update, an updated package not working, etc.
For personal files (and not only) you should consider a backup solution.

[Duke187]

i use Timeshift as Snapper tool .
Only use if you know what your doing, because it Disable Snapper-Support so Snapper will open but its useless.

i also use a easy way like Disks on KDE to Backup my Partiton with all files to an External Backup Drive.Or Restore in Disks if i need it.