SwiftUI: how to use NavigationView in macOS?

I have two separate Xcode projects that I'm using to learn SwiftUI:

1. A true macOS project (not Catalyst) on Mac.
2. An iOS project (iPhone).

The following code creates a simple

NavigationView

import SwiftUI

struct ListView : View {
    var body: some View {
        NavigationView {
            List() {
                NavigationButton(destination: Text("detail 1")) {
                    Text("row 1")
                }
                NavigationButton(destination: Text("detail 2")) {
                    Text("row 2")
                }
            }
        }
    }
}

#if DEBUG
struct ListView_Previews : PreviewProvider {
    static var previews: some View {
        ListView()
    }
}
#endif

It works as expected on iOS 👍

But on the macOS project the same code as above doesn't work the same way

When I launch the app on Mac, I get this window

And when I click on any row, the detail view just collapses/disappears, never showing me detail view.

Any ideas how to fix this? Maybe I'm missing something? Or perhaps this is just a bug?