When you click an Amazon link in Chrome, it usually opens the Amazon app if you have it installed.

However when you click an Amazon link, if it uses AMP, it usually opens google.com/amp/amazon.com meaning chrome doesn't know it has to open the Amazon app

Note: Amazon doesn't use AMP, just an example.

I hate when web links try to open an app. If your product is an app, I refuse to use it. So no harm no fowl, for me at least, here.