Is there an alternative to Active Directory under Linux?

Question

linux

Good day.
In the light of import substitution, I was puzzled by the question of replacing some of the usual parts of the microsoft ecosystem with less proprietary analogues. So far, in the framework of self-education.
I'm interested in a good holistic solution that can replace full Active Directory, single sign-on services and group policies, dfs, and perhaps all sorts of other nice features.
The final goal was to perform some manipulations, such as introducing a computer into a domain, and everything suddenly became wonderful, centralized and manageable. Compatibility with Windows is not critical. It is also not necessary to make the steepness of the MS System Center level completely.
I am aware of the existence of LDAP and have little idea how it works in the AD ecosystem.
I am aware of samba and its ability to be both a domain controller and a client.
I am aware of the puppet, ansible and have heard a little about the term orchestration systems.
Single servers under the inux admin all the time, now the task is to stretch it all to desktops and there is a little lack of experience and a list of good keywords for setting Google.
Who was involved in replacing ACTIVE DIRECTORY on Linux desktops, share an example of an ecosystem.

Answer 1

And what exactly is the question? Global catalog systems - there are only two of them - AD / Samba (plus various variations with LDAP) and IPA. If not one, then another. If neither one nor the other means a bicycle or nothing ...

Answer 2

FreeIPA