About the developer of App for Zoom App AD linkage

You can also check from the Azure marketplace, but the creator is Zoom.

Use Azure AD to manage user access and enable single sign-on with Zoom. Requires an existing Zoom subscription.

* Enterprise Single Sign-On-Azure Active Directory supports rich enterprise-class single sign-on with Zoom out of the box. Users sign in using their organizational accounts hosted in Active Directory.

* Easy Configuration-Azure Active Directory provides a simple step-by-step user interface for connecting Zoom to Azure AD.