What is the Azure AD or Entra ID app gallery and why should you care?

The Microsoft Entra ID app gallery is a collection of thousands of pre-integrated applications with the Microsoft Identity stack, acting as both a marketplace and distribution channel. It simplifies certain scenarios such as deploying multiple pre-configured applications behind a central Microsoft Entra sign-in experience. The personas who use and benefit from the gallery include enterprise IT and security teams, software vendors, and independent developers. The supported auth protocols are SAML 2.0, OpenID Connect, password-based Single Sign-on (SSO), and Linked Authentication. The Entra app gallery is valuable for organizations with strong requirements around centralized identity management and automated provisioning but may not be suitable for smaller organizations or those requiring specialized compliance controls.