SwiftUI Picker doesn't use NavigationView

Hi, when I try to use Picker inside a Form, inside a NavigationView it will always use the .menu style for the Picker. All tutorials, docs show the default renderings to have a new nav page rendered with the options.

I don't want this 'dropdown', I want my pickers to behave the same way they do in iOS system settings (new subpage with navigation).

I'm using the latest xcode, creating for iOS.

struct SettingsView: View {
  @Binging var colorScheme: ColorScheme?
  @State var selectedColorScheme: Int = 1
   
  var body: some View {
    NavigationView {
      Form {
        Section(header: Text("UI").foregroundColor(.secondary)) {
          Picker("Color scheme", selection: $selectedColorScheme) {
            Text("system default").tag(1)
            Text("light theme").tag(2)
            Text("dark theme").tag(3)
           }.onChange(of: selectedColorScheme) { scheme in
            switch scheme {
            case 1:
              colorScheme = nil
            case 2:
              colorScheme = .light
            case 3:
              colorScheme = .dark
            default:
              break
            }
          }
      }
    }
  }
}