Breaking isolation context bug

Minimum.swift

import SwiftUI

@Observable @MainActor
final class ViewModel {
    var name: String { "Foo" }
}

class ObservableFoo: ObservableObject {}

struct ContentView: View {
    @Bindable var viewModel: ViewModel
    // Comment this out to see the error pop up when accessing the `viewModel.name`
    // property. (whether it's properly injected on just like this does not matter)
    @ObservedObject private var foo = ObservableFoo()

    var body: some View {
        VStack {
            Text(text)
        }
        .padding()
    }

    private var text: String {
        viewModel.name
    }
}