It does, because I’ve tried to install some apps from Aurora store (denying network permission) and then I saw these requests on TrackerControl, so maybe those apps wantend to be opened by default with these links. We are talking about video player apps, so there is no need to default on them for Amazon.
Why having DRM behind a “do you want to install DRM to play media” button is seen as a bad thing? Otherwise everyone would have to use chromium.