I have to wonder though, how did you get thru all the maps with ever having duplicate artifacts to test this yourself?
Also if you idle that much, why not join a clan? Clans are awesome for idlers.
Any of the top 10 clans (from the clan list) would be a big help to you (though the top few might be a little harder to get into).
https://www.warzone.com/Clans/List