The supply chain problems in the US are caused by the lack of US infrastructure. The reason is simple: the amount of imports into the US increased a lot in the last few years, especially after COVID (check the trade balance numbers), but the infrastructure is lagging at least 10 years behind. These problems will get worse, and China cannot do anything about it.
Before any of the "data from china are fake" guy turning up, customs data can be collaborated with other country's data, do it with your U.S. or europe data to see whether imports from China have any significant change.
I guess everyone else in this thread is just imagining the lack of supply from China.