Hi - Thanks for the question -
If you're hosting using Azure service you would need to check this on a per resource basis. For many Az resources this is a simple as checking in the Azure portal (as one example, API Management has a protocols and ciphers page which clearly shows this type of info). That being said , I can check if there's a list of services that will deprecate older TLS versions.
In addition , and this may be useful if you're hosting your own code , you can also check from the outside in if you have external endpoints (for example an external website you're hosting) using tools like SSL Labs https://www.ssllabs.com/ssltest which will give you a full report including cipher suites used
The notification carried some more detail on what's happening here https://learn.microsoft.com/en-us/security/engineering/solving-tls1-problem