No not really. It does the various services for the most part, but Active Directory is exclusively a Microsoft product. Group Policy in particular also does not have a drop in replacement that’s any sort of sane.

A bunch of enterprise services are Windows only. Also Active Directory is by far the best and easiest way to manage users and computers in an org filled with a bunch of end users on Windows desktops. Not to mention the metric shitload of legacy internal asp applications…