The supply chain remains the problem. Many manufacturers of the components which go inside US equipment obtain parts from China either in whole or to mix in with their own parts to save money. Example: Some of those NIC processors in your computers and networks are still made by Huawei’s supplier with its back door access and reporting. But hey, the price was the best and that’s how government contracts work.
The whole Huawei system is a weaponized spytool. Its China. It may be labeled a company but its still China.