@surajgangwar, I know this is confusing, but there is nothing wrong with linking Azure Functions (or Function Apps as they called) to App Services. If you'd like to run the function in a more 'dedicated manner', you could choose the respective App Service plan for the purpose. There are multiple deployment options and this page should clarify that question. Hope that helps.
I am not saying it's wrong. But I think it would be better if they could just redirect it to page which would provide an overview of function app. Because the first time users like myself hope to get an overview of the service. I hope you understand my concern.
