iOS 15 SwiftUI Navigation > Tab View > List Not Displaying Navigation View Correctly

I have been working on a SwiftUI app that targets both iOS/iPhones and iPadOS/iPads and have found an issue with a the List contents being completely visible (i.e. not blurred) under the Navigation Title as shown below. It seems to only occur if the detail view is a TabView, and even then it still doesn't occur every time.

The issue only occurs on iPads. Everything seems work fine on iPhones running iOS 15.

A recreation can be found in the following code:

import SwiftUI

struct TestMainList: View {
    var body: some View {
        NavigationView {
            ScrollView {
                VStack {
                    ForEach(1..<21) {
                        NavigationLink("Detail \($0)", destination: TestDetailTabView(name: "Detail \($0)"))
                            .padding()
                        Divider()
                    }
                    NavigationLink(destination: EmptyView()) {
                        EmptyView()
                    }
                }
            }
            .edgesIgnoringSafeArea([.bottom])
            .navigationTitle(Text("List"))
            EmptyDetailView()
        }
    }
}

struct EmptyDetailView: View {
    var body: some View {
        Text("Select a detail item to view")
    }
}

struct TestDetailTabView: View {
    var name: String
    var body: some View {
        TabView {
            List {
                ForEach(1..<21) {
                    Text("\(name) Row \($0)")
                }
            }
            .listStyle(.plain)
            .navigationBarTitle(Text(name))
            .tabItem {
                Image(systemName: "tablecells")
            }

            Text("Some Other Content")
                .navigationTitle("Other Tab")
                .tabItem {
                    Image(systemName: "note")
                }
        }
    }
}