DId FedEX really leave amazon?!?!?

As far as I know, Amazon doesn't do business with FedEx anymore, right? I don't know who is responsible for such dissatisfaction with delivery, I always received my orders on time. I received my new smartwatch 2 weeks ago https://www.amazon.com/Vont-Smart-Body-S...08XYX8RDR/, so I am satisfied. Maybe I was always lucky with Amazon deliveries, but the quality of the goods I received was always great. I knew that I could not find such scales anywhere else at a good price, so I was willing to wait for delivery as long as it took.