ViewControllerProvider.swift

extension View {
  func embeddedInHostingController() -> UIHostingController<some View> {
    let provider = ViewControllerProvider()
    let hostingAccessingView = environmentObject(provider)
    let hostingController = UIHostingController(rootView: hostingAccessingView)
    provider.viewController = hostingController
    return hostingController
  }
}

final class ViewControllerProvider: ObservableObject {
  fileprivate(set) weak var viewController: UIViewController?
}