COM Out arguments in DXGI/D3D11 are suddenly unmanaged about cswin32 HOT 4 OPEN

  [Guid("94D99BDB-F1F8-4AB0-B236-7DA0170EDAB1"), InterfaceType(ComInterfaceType.InterfaceIsIUnknown), ComImport()]
  internal interface IDXGISwapChain3Extra : IDXGISwapChain3
  {
    void _VtblGap_6();
  
    unsafe void GetBufferRaw(uint Buffer, Guid* riid, void** ppSurface);
  }

  List<ID3D12Resource> gSurfaces = new List<ID3D12Resource>();
  List<nint> gSurfacesRaw = new List<nint>();

  // ...

  guid = typeof(ID3D12Resource).GUID;
  void* ppSurface;
  gSwapChain.GetBufferRaw(i, &guid, &ppSurface);
  gSurfacesRaw.Add((nint)ppSurface);
  gSurfaces.Add((ID3D12Resource)Marshal.GetObjectForIUnknown((nint)ppSurface));
  
  gDevice.CreateRenderTargetView(gSurfaces.Last(), null, rtvHandle);
  
  // ...
  
  ID3D12Resource_unmanaged* p = (ID3D12Resource_unmanaged*)gSurfacesRaw[(int)gFrameIndex];
  D3D12_RESOURCE_BARRIER[] b = [
    new() {
      Flags = D3D12_RESOURCE_BARRIER_FLAG_NONE,
      Anonymous = new()
      {
        Transition = new()
        {
          pResource = p,
          Subresource = D3D12_RESOURCE_BARRIER_ALL_SUBRESOURCES,
          StateBefore = D3D12_RESOURCE_STATE_PRESENT,
          StateAfter = D3D12_RESOURCE_STATE_RENDER_TARGET,
        }
      }
    }
  ];
  gCommandList.ResourceBarrier(1, b);
  
  // ...

  void ResizeBuffers(nint lParam)
  {
    if (gSwapChain != null && gFence != null && gSurfaces.Count > 0)
    {
      WaitForPreviousFrame();

      for (int i = 0; i < 2; i++)
      {
        Marshal.ReleaseComObject(gSurfaces[i]);
        ((ID3D12Resource_unmanaged*)gSurfacesRaw[(int)i])->Release();
      }
      gSurfaces.Clear();
      gSurfacesRaw.Clear();

      // ...
      
      Guid guid = typeof(ID3D12Resource).GUID;
      void* ppSurface;
      gSwapChain!.GetBufferRaw(i, &guid, &ppSurface);
      gSurfacesRaw.Add((nint)ppSurface);
      gSurfaces.Add((ID3D12Resource)Marshal.GetObjectForIUnknown((nint)ppSurface));

      gDevice.CreateRenderTargetView(gSurfaces.Last(), null, rtvHandle);