Is there any controversy about the Chow Yun Fat version of Shanghai Beach?

The only thing that reminds me is the location of the play, which was in the early days of reform and opening up, and should have been basically filmed in Hong Kong and Macao. Therefore, the architectural style and interior decoration in the play lack an antique atmosphere of Shanghai, but a consistently magnificent Hong Kong style. However, some people say that some of the filming was really done in Shanghai, so I really don't know if I have filmed in Shanghai.