How do I get Apple TV Gen 3 Apps to transfer to Apple TV Gen 4
How do I get Apple TV Gen 3 Apps to transfer to Apple TV Gen 4 Home Screen
Apple TV 4K, tvOS 13
you can't
apple tv 3g and 2g does not have apps
they have preset channels which are located on apples servers
only appletv hd(4g) and appletv 4k (5g) has an app store where third party developers can make and sell apps