Entra ID acting as SAML IdP
Microsoft Entra ID (formerly known as Azure Active Directory) can act as a SAML identity provider (IdP) in the following configurations:
Network Security 
Network Security
NOC & SOC Management
Enterprise Networking
Business Communications
Zero Trust Access 
Cloud Security 
Hybrid Cloud Security
Cloud Native Protection
Web Application / API Protection
SAAS Security
Security Operations 
SOC Platform
Advanced Threat Protection
Endpoint Security