Turns out to not matter in this case because the camera appears top scratch the film anyway.
you bought a new Leica M6? Sorry - channelling my experience..
there may just be some dust/debris/broken piece of film in there that causes scratching. I wouldn’t give up on it just yet unless you don’t really care for the camera anyway.
Unless you have an Xpan where the film gate is wider in pano, all these other cameras do in pano is mask off some of the height of the image to give the same pano ratio. While it may seem silly as why not just crop in post?:
1. When these cameras were released we did not have software to crop in post. So unless you were a home darkroom printer your prints would be returned either in pano or regular format.
2. shooting in the pano setting makes you commit to that format and forces you to compose that way. Which IMO is very helpful.
3. the pano crop looks exactly the same pic ratio wise as using an Xpan. Difference being the Xpan has a much larger negative so you can print bigger.