I wonder how you get all this info about the backends behind cloud services. Nearly everything is a huge blackbox from my perspective. Personally, I deploy solutions to AWS too, mostly beanstalk with defined environments, cognito for user authentication, typical latte macchiato cloud user.
Still using my own server for anything in development or for personal stuff or file storage (have you looked at prices? It is basically free now). I mainly use cloud services because people want it fast and cheap but still need an option to scale the solution.
I am content with the services Amazon delivers, but I heavily expect some kind of bubble burst in the future. Development of infrastructure and management interfaces probably isn't cheap either.
So does Google have a better backend than Amazon or Microsoft? I couldn't tell. Only that Microsoft tends to be slower than the competitors, Google tends to ban random users and some of their own services, and just with that Amazon comes out on top. But the fear that a service is deprecated at one point is a permanent undercurrent.