NavigationStack.swift

import SwiftUI

// Wrap PathOptions with something that can differentiate between screens 
struct PathStep: Hashable {
    var level: Int
    var option: PathOptions
}

enum PathOptions: String {
    case first
    case second
    case third
    case fourth
    case fifth
    case pathless
}

struct LinkList: View {
    
    var step: PathStep? = nil
    
    @State private var selection = Set<PathStep?>()
    
    var body: some View {
        List(selection: $selection) {
            // Differntiate the link value from the one that brought us here
            NavigationLink("First", value: PathOptions.first.nextStep(step))
            NavigationLink("Second", value: PathOptions.second.nextStep(step))
            NavigationLink("Third", value: PathOptions.third.nextStep(step))
            NavigationLink("Fourth", value: PathOptions.fourth.nextStep(step))
            NavigationLink("Fifth", value: PathOptions.fifth.nextStep(step))
        }
        .navigationTitle("Screen \(step?.level ?? 0)")
    }
}

extension PathOptions {
    
    func nextStep(_ step: PathStep?) -> PathStep {
        PathStep(level: (step?.level ?? 0) + 1, option: self)
    }
}

struct ContentView: View {
    
    var body: some View {
        NavigationStack {
            LinkList()
                .navigationDestination(for: PathStep.self) { step in
                    LinkList(step: step)
                }
        }
    }
}

#Preview {
    ContentView()
}