It would be great to have a dataset for the applications within Entra ID (Azure AD).
For example 2 datasets; one for Service Principals objects (or App integration or Enterprise app), and another one for the Application objects (App registration).
If the datasets could contain configuration such as the permissions, information about certificate and secrets, exposed api's, assigned users and owners.. you could create great PowerBI reports for insights.
For example you have a PowerBI dashboard showing which applications are linked to each other via permissions and exposed APIs( like a spider web
Or a view of certificates and secrets with the expire dates (if that data would be store via Data Connect, we could create automated alerts if something is about to expire, there is nothing built-in for this).