If a person who sneaked abroad was not reported missing at home, but foreign countries obtained foreign status through refugees, does such a person have dual nationality?

If people who invest abroad are not reported missing in China, and foreign countries obtain foreign status through refugees, do such people have dual nationality? Impossible, because people who invest abroad have not been reported missing in China, and foreign countries have obtained foreign status through refugees, so it is impossible for China to have dual nationality. This is impossible, because China cannot but allow China workers to invest in those who have not been reported missing at home and those who have obtained foreign status abroad through refugee status. Do such people have dual nationality? Impossible, because China wants to allow China citizens to have dual citizenship, so if he invests abroad, he has not been reported lost at home, and foreign countries have obtained foreign status through refugees. Do such people have dual nationality? Impossible, because China does not allow China citizens to have dual nationality, so this kind of international is invalid.