If the Chinese Yuan wants to shift from the USD, it could happen because business competition in various sectors is now dominated by the Chinese market.
But if the Yuan wants to remove the USD, it definitely can't or even if it could, it would have to wait a very long time because the Marketcap of the USD is so very large.
Just look at the cryptocurrency market, the most common trading pairs with Fiat are pairs with USDT, USDC, DAI, FDUSD and all of them are tokens based on Fiat USD. This is proof that the USD is very strong if it wants to be defeated by the Yuan from China.