Hi JBO, Good question! The Apple TV app and Apple TV+ app is supported on this TV so you don't have to purchase a separate Apple TV box.
And during the initial setup you will have an option to install basic apps such as Youtube TV, Disney+, Apple TV, Hulu, etc. and it will all be listed on the apps section of the Home Menu of the TV.
You can launch the Apple TV app there and access the Apple TV+, premium Apple TV channels, and buy or rent over 100,000 movies and TV shows within it. Hope this helps! -Sam