Yes. The classroom example of a vertically integrated monopoly has always been the big movie studio systems in the 40s. They not only made the movies but also distributed them and then owned the theaters they were shown in. This monopoly was broken up in 1948. It resulted in better films and paved the way for television.

Amazon will make the movies, host them on AWS, stream them to their Firesticks, shows them through Amazon Prime on glowing rectangles bought in their store and monetizes it all with their ad service. How is that not a vertical monopoly?