Read The power of previews in Xcode.

It has example of a preview for views with binding which requires additional boilerplate where you have to wrap the view with another view defining a state for your binding and then pass it to the previewing view.

Fortunately, Xcode 16 introduced the Previewable macro type.

TIL to use #Preview macro: Mastering Preview macro in Swift.

TIL SceneStorage property wrapper: State restoration in SwiftUI.