Inquiry about focus-related functionalities in TV app development on tvOS14.0.

We are developing a TV app using Swift UI on tvOS14.0. While exploring the available features, we noticed that tvOS15.0 offers several focus-related functionalities such as @focusState, focusSection, focusable, focusable with equal, among others. However, we are unable to find these features in tvOS14.0.

Our concern is whether we can develop a fully functional, focus-supported app on tvOS14.0 without access to these functions. We would appreciate if you could suggest any viable alternatives to achieve the same functionality in tvOS14.0. https://developer.apple.com/documentation/swiftui/focusstate

https://developer.apple.com/documentation/swiftui/view/focusable(_:)

https://developer.apple.com/documentation/swiftui/view/focused(_:equals:)

https://developer.apple.com/documentation/swiftui/list/focussection()