New Huawei devices don’t have Google services, thus they don’t have an updated version of Chrome. That causes these devices to be not suitable for web testing. Hybrid app testing is also affected - only when interacting with the Web context.
Huawei models manufactured after the US ban came into effect (May 2019) are affected.
Sauce Labs is considering different approaches to remedy or mitigate this issue, but that still needs to be determined.