Is Azure App Service Compliant with PCI Standard 3.0 and 3.1?

In the provided url above following remark can be found:

PCI DSS version 3.1 certification requires disabling Transport Layer Security (TLS) 1.0. Currently, disabling TLS 1.0 is not an option for most App Service plans.

It is not clear if "most AppService plans" support PCI x.y. or not. AppService environment is different offering, which does support PCI 3.1.
However most people focus AppService. In this context, I it is not clear if, what and how exactly PCI can be achieved?

My suggestion is to provide here a bit more transparent and concrete answer related to AppService.

It's important to remember that your solution will not just involve App Service and you need to look at all of the services when attempting to map to compliance controls.

I would start at the Microsoft Trust Center. If you are part of a corporate security and compliance team, that site is your friend.

From there you can get to the PCI-DSS overview page, from which you can get to a number of resources, including the Attestations of Compliance for Azure Services.

The Azure PCI DSS Responsibility Matrix will help you identify what you are responsible for vs. what Microsoft is responsible for in establishing your controls. To help with some of the control mapping and enforcement, there is also an Azure Blueprint that you might be able to leverage.

Hope this helps.