Purchase after lease termination

Hello, I would have read my lease again due to a damage case, and at the same time the following point has come to mind which I had probably overlooked at that time, although I had read the whole paper mountain twice before signature: “A purchase of the vehicle from the LG by the LN is excluded”. The contract was concluded with a large dealer, and I was then (orally) assured that a purchase would be possible after the lease end. One would then make an offer and possibly agree. And one would do so on a regular basis. I had also left it to myself. But it was not yet so important to me, because it was not yet clear that both my prefered drive concept and the vehicle class will die out so quickly. But that is both a bit in contradiction. Or does it simply mean that the dealer will take over the car from the LG and that he will sell it to me as a third party? So that dealers and LG contract both are right? No residual value has been fixed already against me (Kilometerleasing) and the car will be sold so or so between anyone, then I will not be charged a value reduction?