Some whitewater playboats have a concave chine that I was told makes bubbles that have this effect, but intended to make turning the boat easier. No idea if it was the bubbles that actually helped, but I've been in a boat that had them and it was noticeably easier than normal to spin it around.
You can see the inverted chine here (the line running along the underside of the boat, at the edge of the flat bottom):
Seems like there would be a surface interface area versus propulsion force calc in there somewhere. Guessing the result wouldn’t be very significant for a tiny vessel.
It would likely have some effect but you'd have to pack and power the air supply. Might be something you could just do with compressed air and have a little foot pedal to turn it on when you want it.
