Unable to find any apps in Conditional Access App Controls

Hi dilanmic,

Try to change the session control to "monitor only" this won't require a custom policy.  Most office apps should be pre-onboarded already so this will force them to appear in the console after a session has been sent to proxy. 

Another useful tool for troubleshooting and onboarding apps is the admin toolbar. If your testing or onboarding new apps this can help.

Troubleshooting access and session controls | Microsoft Docs