It sounds like you are the one who doesn't understand friend. The remote app for Apple watch I'm speaking of is one of the default apps on Apple Watch and cannot be uninstalled. It is there even if you do not have the iTunes remote app or the Apple TV remote app on your phone. It is not attached to either of those apps. It allows you to control not only the 4th gen Apple TV (HD & 4K) but even 2nd and 3rd gen Apple TVs as well. It works via being signed into Homesharing with your AppleID on the AppleTV. I use it all the time on my AppleTV 4K and 3rd gen Apple TV.