I first saw this type of boat in an old copy of The Boatman magazine (No 33 1996) which described a traditional fishing boat called a Cannot which is not a canoe but a native of Lac Leman. These boats below were seen respectively on Lac Bourget and Lac Annecy and seem to closely follow the type from Leman.
Apparently size of the traditional boats was 18 to 23 feet, these examples are at the shorter end of that scale. While traditional boats were sailed, outboards appear to be the now almost universal method of propulsion.
The lines are not dissimilar to our own Bursledon gig, most appear to be used for leisure fishing on the lakes and it was nice to see a few being worked by oars.