SwiftUI, Combine: pass @Published property as a @Binding to another object (delegation style)

I have a following synthetic example:

final class MainViewModel: ObservableObject {
    @Published var response: String?

    func makeSecondaryViewModel() -> SecondaryViewModel {
        SecondaryViewModel(response: $response) // Error
    }
}

final class SecondaryViewModel: ObservableObject {
    @Binding var response: String?

    init(response: Binding<String?>) {
        self._response = response
    }

    func performRequest() {
        // Make request here
        response = "The result of the request"
    }
}

I'm getting an error when trying to initialize SecondaryViewModel with the response binding:

Cannot convert value of type 'Published<String?>.Publisher' to expected argument type 'Binding<String?>'

I understand the error, so I have 2 questions:

1. What's the right way to make a @Binding that would target a property on another ObservableObject?
2. What would be the best way to connect these two ViewModels in a delegation-like relationship, maybe my approach is completely wrong?

In case of an external configuration, i.e. if I pass the response as a binding in a SwiftUI View, I can actually get this idea to work:

SecondaryViewModel(response: $mainViewModel.response)

The problem is that I cannot do this while being inside the `MainViewModel:

SecondaryViewModel(response: $self.mainViewModel.response) // doesn't work

You can pass @Published around and use @Binding to maintain a single source of truth across various Views. However, IMO, I don't think this is the right way to do. I would rather passing ViewModel within Views instead. Something like this:

struct MySecondView: View {
    //Or inject via EnvironmentObject if you want
    @StateObject private var viewModel: SecondaryViewModel
    
    init(viewModel: SecondaryViewModel) {
        self._viewModel = .init(wrappedValue: viewModel)
    }
    
    var body: some View {
        ...
    }
}

struct MyMainView: View {
    @StateObject private var viewModel = MainViewModel()
    
    var body: some View {
        NavigationStack {
            NavigationLink("Move") {
                MySecondView(viewModel: .init(response: $viewModel.response))
            }
        }
    }
}