I am not finding my home movies, nor my Apps. We have had Apple TV since the first was released and every subsequent model. Read that when the 2019 models of Samsung came out Apple TV was included. But where are my home movies and previous apps?
The new TV's include the Apple TV app, not all the other things that you find on an actual Apple TV. You would have to check and see if the other apps you want are available to download from Samsung. And no, you won't have access to your home movies.
Taken from Samsung's website.
If you want access to personally stored movies at home, you will need some other app to be able to access those if available or connect a physical AppleTV to the TV.