Keycloak support for Fuse

Issue

• Team we would like to utilize keycloak for some of the security related requirements.
• This KCS here mentions that all middleware subscriptions include support for keycloak. Currently, we have subscription for Fuse Middleware solutions. Would that mean that keycloak would be supported as part of this subscription.
• Secondly, what's the difference between Redhat SSO and keycloak. They seem to have lots if common functionality.