I'm not entirely sure what you mean. But if we're talking about AWS cloud services, there are certainly AWS experts who know how to develop software in a cloud-

I'm not entirely sure what you mean. But if we're talking about AWS cloud services, there are certainly AWS experts who know how to develop software in a cloud-native way and utilize most or all of the relevant services. That knowledge is what we are paid for. It's also true that there are a lot of AWS services available and expertise is divided into different specialty areas, like ML, IoT, etc. Hard to be expert at everything.