The Home Screen on Apple TV provides easy access to your apps. You can change the order of apps, place your favorite apps in the top row, and create folders for groups of apps.
On the Apple TV Home Screen,
You can organize apps into folders. For instance, you can store all of your streaming apps in an Entertainment folder.
On the Apple TV Home Screen, or remote.
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Go to Users and Accounts > [default user name] and Install or delete apps on Apple TV