Can you disclose the number of users & apps you have? Are you using Keycloak or do you pay for Red Hat Single Sign-On (for context, that's the name of the downstream product that Red Hat sell subscriptions for).
This means that bug fixes and features haven't trickled down yet. Although RH SSO 7.5 jumped from Keycloak version 9.0.17 (in RH SSO 7.4) to 15.0.2 so there's some improvement there... but Keycloak just released 18.0.0...