Hi bala sai,
TLS 1.2 is actually widely accepted and used as a default version for Azure App service. As long as you have set your minimum TLS version 1.2 in the Azure portal, you should complete that compliance focus.
However, some compliance initiative may look for full latest safe protocols, which is currently TLS 1.3. If the policy emphasizes the "latest version", it can flag down your app service as it does not yet support TLS 1.3, or because it is not set as a minimum version if that option is available.
You can go to your azure portal and check:
Navigate your app on service. Go to TLS/SSL Settings.-> protocol settings, ensure that the 'minimum TLS version' is set on TLS 1.2.
Keep a record of this configuration change for any compliance audit, as it shows that you are following TLS 1.2 as the minimum version.
Finally, keep an eye on the Azure update about TLS 1.3 support for app services and consider the plan to adopt it after being available in your area.
https://learn.microsoft.com/en-us/azure/app-service/overview-tls
if you have any further concerns or queries, please feel free to reach out to us.