ObservedObject lifecycle when created but not retained by parent UIViewController

Hello

I am trying to understand how to properly manage ObservableObject's (ObservedObject inside the SwiftUI View) lifecycle which was created in a view controller as a parent of a SwiftUI view. I have read many posts and rewatched these two videos and I am not still 100% sure https://developer.apple.com/wwdc20/10040 https://developer.apple.com/wwdc22/10072

So my dilemma boils down to whether it is needed to strongly retain the object by the parent view controller or not. In many sources including the videos it was mentioned that SwiftUI does NOT manage the lifecycle of the ObservedObject.

The SwiftUI view and the model (ObservableObject)

final class MyModel: ObservableObject {
  // imagine this is somehow updated form somewhere
  @Published var message = ""
}

struct MySwiftUIView: View {
  @ObservedObject var myModel: MyModel

  var body: some View {
    Text("message is \(myModel.message)")
  }
}

Option 1: View controller retaining the object

class MyViewController: UIViewController {
  let myModel: MyModel // strong reference
  let hostingController: UIHostingController<MySwiftUIView>

  init() {
    myModel = MyModel()
    let mySwiftUIView = MySwiftUIView(myModel: myModel)
    self.hostingController = UIHostingController(rootView: mySwiftUIView)
    super.init(nibName: nil, bundle: nil)
  }
  
  required init?(coder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
  }
}

Option 2: View controller NOT retaining the object

class MyViewController: UIViewController {
  let hostingController: UIHostingController<MySwiftUIView>

  init() {
    let myModel = MyModel() // local retain for the `init` body
    let mySwiftUIView = MySwiftUIView(myModel: myModel)
    self.hostingController = UIHostingController(rootView: mySwiftUIView)
    super.init(nibName: nil, bundle: nil)
  }
  
  required init?(coder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
  }
}

Can i just use Option 2, and not retaining the observable object by the parent view controller or would that cause any issues?

Thank you in advance!