You can make an app to an extent that can be used easily for a customer, but for making big E-commerce apps or social apps like Facebook, Amazon, or comparable to them. You have to learn more things like ML, deep learning, and algorithms related to it. And then some software which makes it easy for making your app super efficient like TensorFlow and much more will be needed. So, Android studio is just starting, you have to go beyond for making advanced apps like Facebook, Amazon.