If you are looking to test in prod, you are in the right place.
OAuth 2.0 is an industry-standard protocol for authorization that allows third-party applications to access a user's data without exposing their credentials.
OpenID Connect is an authentication protocol built on top of OAuth 2.0. It enables secure and user-friendly single sign-on (SSO) for web and mobile applications.
SAML 2.0 is an XML-based framework for securely exchanging authentication and authorization data between parties, often used in single sign-on (SSO) scenarios.