@jay-saxophone383 I do believe you can get FusionAuth to work as you described here. Here are some links that may give you a little more detail.

SAML v2 with ADFS

OpenID Connect with Azure AD

Enabling Single Sign-On in an Organization

Product Update

As mentioned above, some of the features described are only available with paid planes and if you need to test them out, you will want to contact FusionAuth and see what can be worked out.