Crash when opening a window leveraging NSHostingView wrapper in SwiftUI on MacOS (Sonoma)

struct ContentView: View {

    var body: some View {
#if os(macOS)
        VStack {
            Button("Open Window 2") {
                Window2().openInWindow(title: "Window 2", sender: self)
            }
            .contextMenu {
                Button("window1menuItem") {
                    // Action for window1menuItem
                }
            }
            Image(systemName: "globe")
                .imageScale(.large)
                .foregroundStyle(.tint)
            Text("Hello, world!")
        }
#endif
    }
}

struct Window2: View {
    var body: some View {
        Text("This is Window 2")
            .frame(width: 300, height: 200)
            .contextMenu {
                Button("window2menuItem") {
                    // Action for window2menuItem
                }
            }
    }

    func openInWindow(title: String, sender: Any?) {
#if os(macOS)
        let window = NSWindow(
            contentRect: NSRect(x: 20, y: 20, width: 280, height: 200),
            styleMask: [.titled, .closable, .miniaturizable, .resizable],
            backing: .buffered, defer: false)
        window.center()
        window.setFrameAutosaveName(title)
        window.contentView = NSHostingView(rootView: self)
        window.makeKeyAndOrderFront(sender)
#endif
    }
}

#Preview {
    ContentView()
}

crashes like so

when closing window2 with the red dot in the top left corner. closing window1 does not crash the app. Closing window2 after closing window1 does crash the app just the same as did closing window2 with window1 open.

Questions:

1. Is there anything obviously wrong with my sample app
2. Is SwiftUI best avoided for production grade apps targeting MacOS & iPadOS yet? Thanks. Sonoma 14.4.1 Xcode 15.3

Separate openInWindow use something like NSHostingView(rootView: Window2()).

SwiftUI has openWindow Environment property too.

In your code self is getting killed instantly.

https://www.hackingwithswift.com/quick-start/swiftui/how-to-open-a-new-window