Salesforce Identity connects your Salesforce org users with external
apps and services while providing administrative tools for monitoring,
maintaining, and reporting user apps and user authorization.

Features:

1. Single sign-on
2. Connected apps
3. Social sign-on
4. Two-factor authentication
5. My Domain
6. Centralized user account management
7. User provisioning
8. Identity Connect
9. App Launcher

Salesforce Identity connect – https://www.infallibletechie.com/2021/04/salesforce-identity-connect.html