I’ve read about the camera modes I the docs and as photography is one of my interests I though “Fisheye” is a very misleading name for a camera setting when it has nothing to do with a fisheye lens.
A fisheye lens is a very wide lens that has LOTS of distortion.
I possible I think the name should be changed to “Barrel distortion” or something that’s more accurate.
On tele lenses the distortion can actually go the opposite way.