ConditionalView_2.swift

struct ContentView: View {

    @State private var isSubtitleVisible: Bool = false

    var body: some View {
        VStack {
            Text("Title")
            if isSubtitleVisible {
                Text("Subtitle")
            } else {
                EmptyView()
            }
            Text("Body")
            Spacer()
        }
    }
}