They are sold in England with the French name baton:
https://www.tesco.com/groceries/en-GB/products/256122878
It’s possible this is derived from an actual French name for this kind of short baguette, but it might also just be that someone thought it sounded French-ish, and that French people use no such word.
They are usually made to order from tubs of mayonnaise based fillings and pre-chopped salad. Here’s a closeup of one in its natural habitat:
https://www.tripadvisor.com/Restaurant_Review-g186225-d17303...