On-prem AD devices joining to Azure AD - confused on Windows 10 vs Server devices supported

Question

We have an on-prem AD environment with Windows 10 joined devices. We want to also join them to Azure AD so we can manage them with InTune.
From what I understand, you configure Azure AD Connect and deploy a GPO to enroll them.
What I'm confused about is whether that includes Server OS's -- are we going to see a bunch of server name objects showing up in Azure AD as registered or joined that don't need to be?
At this page https://learn.microsoft.com/en-us/azure/active-directory/devices/hybrid-azuread-join-plan#review-supported-devices it is saying servers are supported. Is that referring to a GPO that enrolls/joins the systems into Azure AD if they're on-prem AD whether they're Windows or Server?

Answer 1

A device can't be joined to an on-prem domain and Azure AD Joined. Sounds like you are referring to enabling Hybrid Azure AD Join (which is just joining the on-prem domain and registering in Azure AD)

Servers can't enroll in Intune, but depending on your configuration, they may get Hybrid Azure AD Joined which isn't a bad thing. Do you have any specific concerns?

That link refers to enabling Hybrid Azure AD Join (not enrolling into Intune). There is a seperate GPO to enroll devices into Intune, and thats only for Windows 10/11 and not Server. https://learn.microsoft.com/en-us/windows/client-management/mdm/enroll-a-windows-10-device-automatically-using-group-policy