Trying to understand the difference cloud app security

[Skipster311-1]

Hello

I am trying to understand the difference between adding an application to "cloud app security" by searching "Cloud Discovery" for the app and selecting "Use with conditional access app control" vs. creating a CA policy for the app and selecting "Use conditional Access App control" ?

[#2]

They are both steps in the complete process.
https://docs.microsoft.com/en-us/defender-cloud-apps/proxy-deployment-any-app