Is the Underground Church in China in Schism? Are It's Newly Consecrated Bishops Excommunicated?

In September, the Chinese Catholic Patriotic Association (CCPA), the official church in China, ordained its 18th bishop under the secret Sino-Vatican agreement signed in 2018 and renewed several times including for four more years in 2024. Pope Leo approved the move. 

At the same time, Chinese expert Anthony Clark revealed a contact from an underground Chinese prelate that the underground church has ordained ten new bishops. The Catholic Herald's Michael Haynes reported on it last month: