Just checked the website and yeah it's closed until Dec. 1st: https://www.louvre.fr/en/louvre-bookshop
I don't know if it was open at some point in the past few months.
AFAIK they are still using the custom Louvre 3DS's for guided tours.
I saw one listing recently where someone was selling one of these 3DS's. I assume they stole it. Pretty crazy. I think a smart collector, maybe in France, should keep an eye out if The Louvre ever discontinues using these 3DS's. Maybe they will destroy them or maybe they will auction them off? Would be an amazing piece for any collection.