UIHostingController adds unremovable NavigationBar

A stack overflow posts show this problem:

https://stackoverflow.com/questions/63652728/swift-ui-hostingcontroller-adds-unwanted-navigation-bar

When I add a UIHostingController to my UIKit app it adds a navbar that cannot be removed. This nav bar covers some buttons for me, while other buttons work these ones on the nav bar area on top get blocked but are visible.

I tried removing the nav bar on the UIHostingController wrapper, every ViewController, and the SwiftUI Views.

Am I missing something? I just want to show a List inside my UIView!

Code:

UIHostingController Wrapper

import UIKit
import SwiftUI

class ControlledNavigationHostingController<Content>: UIHostingController<AnyView> where Content: View {
  public init(shouldShowNavigationBar: Bool, rootView: Content) {
    super.init(rootView: AnyView(rootView.navigationBarHidden(!shouldShowNavigationBar)))
    navigationController?.isNavigationBarHidden = true
  }
  @objc required dynamic init?(coder aDecoder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
  }
}

My List

import SwiftUI

struct OverallContentListView: View {
   
  var sections = [0,1,2,3,4]
   
  var body: some View {
    NavigationView {
        List(sections, id: \.self) { section in
          Text("TEST")
        }
    }
    .navigationBarTitle("", displayMode: .inline)
    .navigationBarHidden(true)
  }
}

UIViewController

import UIKit
import SwiftUI

class TurnoverSplitViewController: UIViewController, ContentDisplayer, StoryboardInstantiable, TurnoverSectionSelectionDelegate {
   
  @IBOutlet weak var contentContainer: UIView!
  private var splitContentViewController = ControlledNavigationHostingController(shouldShowNavigationBar: true, rootView: OverallContentListView())
        
  override func viewDidLoad() {
    super.viewDidLoad()

    navigationController?.isNavigationBarHidden = true
    navigationController?.setNavigationBarHidden(true, animated: false)
    addContent(child: splitContentViewController, to: contentContainer)
  }
   
  override func viewDidAppear(_ animated: Bool) {
    navigationController?.setNavigationBarHidden(false, animated: false)
    super.viewDidAppear(true)
  }

   func addContent(child viewController: UIViewController, to: UIView? = nil) {
    // Add Child View Controller
    addChild(viewController)

    // Add Child View as Subview
    if let container = to == nil ? contentContainer : to {
      container.addSubview(viewController.view)
      // Configure Child View
      viewController.view.frame = container.bounds
      viewController.view.translatesAutoresizingMaskIntoConstraints = true
      // Notify Child View Controller
      viewController.didMove(toParent: self)
    }
  }
}