Right on! Paris is already overcrowded with cultural stuff (Eiffel Tower, Louvre, ...) it's best to decentralize France by siting computational infra away from that zone, its tourists, and its cafés, imho.
I'm glad "EDF will provide some piece of land they've got close to some nuclear plants [for] direct capacity" as that makes the most sense indeed. Same with the Alice Recoque exaflopper really, super dumb to plant it in Bruyères-le-Châtel (Paris), put it near Gravelines and Lille, on the high-speed Paris-Lille-Amsterdam train line I say (also Eurostar Paris-Lille-London).
Would've suggested the vicinity of (Old) Orléans in the scenic Loire Valley for this here 1.4 GW affair, but that's had a spectacular water shortage in 2022, which ginormous DCs could only exacerbate. But anywhere on the French shores of the English Channel should work, from Flamanville to Gravelines, where there's plenty of water. Maybe a spot North of Rouen, made (in)famous through Joan of Arc ... (cf. this here map).
In any instance, all of this should be waaay simpler than CERN's plan to ship antimatter throughout the Country and the World I think ... (hopefully, maybe?)