I don’t recall seeing threaded cans in Decathlons in France. I was there this September. Could check out their website.
Ezy-click, yes, and it’s about the cheapest place to buy them. Mr. Bricolage (a hardware chain) have them too, and some of the larger supermarkets. It’s a bit hit or miss.
The Primus Duo does work on both types, though unless you’re going ultralight, I’d recommend the Primus Mimer Duo. Robust and your frying pan won’t slip off so easily.
A duo on a very windy french Atlantic beach. Guitars make great windshields
