https://thinkdiff.net/ios/how-to-create-radio-button-and-group-in-swiftui/

SwiftUI-Radio-Buttons-Demo.swift

struct ContentView: View {
    var body: some View {
        HStack {
            Text("Gender")
                .font(Font.headline)
            RadioButtonGroups { selected in
                print("Selected Gender is: \(selected)")
            }
        }.padding()
    }
}

struct ContentView_Previews: PreviewProvider {
    static var previews: some View {
        ContentView()
    }
}