Have a play with AWS Lambda or Google Cloud Functions, then compare that with Azure Functions and you might wonder if what Azure has done is even remotely “serverless” FaaS or just a huge messy clusterfuck of an App Service which is billed per second and overly complicated to manage and observe.
All 3 clouds have the same fundamental architecture. There's no magic "serverless", everything is just compiled down to a container or some executable package, placed on a server, executed as requests come in, and then paused with varying control and scheduling parameters.
Azure is a little messier than the rest but the end result is the same.
Get something-out-the-door to compete with Lambda and GCF by hacking together an abstraction over Azure App Services - then improve things by version 2?
