Asp.Net App published to Azure only shows "Your App Service app has been created"

I've created an Asp.Net app in Visual Studio and published it to Azure. Everything seeing to go fine, but instead of seeing my app when I browse to the URL, I see this page:

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How do I publish a web app to Azure app?

To deploy to any Azure App service (Web app for Windows, Linux, container, Function app or web jobs), use the Azure App Service Deploy task. This task is automatically added to the release pipeline when you select one of the prebuilt deployment templates for Azure App Service deployment.

For me removing the publishing slot was an option. I did that and re-created it again, just starting over from scratch did the trick of re-uploading all the files.

Then: don't forget to flush the browser cache, or you are looking at the default page while it has actually been published correctly