Use Azure Identity login to Linux devices

LDAP would require reencrypting all passwords in your Azure Entra ID to a lesser format.

There’s a very interesting project -

himmelblau software

https://himmelblau-idm.org/docs/about/

> Himmelblau is an open-source authentication framework for Linux that integrates securely with Microsoft Entra ID (formerly Azure Active Directory). It bridges the long-standing gap between modern cloud identity and traditional Unix authentication (PAM/NSS), bringing MFA, device compliance, and policy enforcement to Linux — without proprietary agents or extra infrastructure.