Missed the renaming of Azure into... ensure? I can't remember the name even though I use it frequently and the azure links still work.
https://www.microsoft.com/en-us/security/business/identity-a...
And yes, the latter is the complete name as seen on the web page...
Trivial example is that AAD doesnt do LDAP, unlike regular AD which was built on it. It's not surprising that some PM would keep "AD" in the name of AADto make the transition to cloud seem less scary, but after a few years its actively unhelpful as the majority of customers have made the switch to cloud based auth and identity.
Although, that also makes me ask why they named it after Active Directory in the first place...