Marc_Laf ,
>>Just want to also make sure there's no dependency on Intune either, just Azure AD?
>>For servers that we want to leverage this on (and cannot be managed by Intune), can we still back their passwords up to Azure?
>>Or do we need to back them up to the local AD?
Correct, Windows LAPS does NOT have a hard dependency on Intune. From the Windows LAPS client perspective, in order to backup passwords to Azure AD the device just needs to be AzureAD-joined, and the necessary Windows LAPS policy directives need to be deployed (if not via Intune, then via GPO or any other method).
Note, I am not authoritative on which versions of Windows Server can be joined to Azure AD - but I've been told that scenario is getting more and more supported as time goes on.