No, not all panoramic sunroofs leak. In fact, most sunroofs don't have any problems with leaks. However, there are a few things that you can do to help prevent your sunroof from leaking. First, make sure that the seal around your sunroof is in good condition. If the seal is damaged or worn, it could allow water to seep in. Second, avoid parking under trees or other objects that could drip water onto your car. And finally, if you do notice a leak, be sure to get it fixed as soon as possible to avoid further damage to your car.