on-prem windows server 2022 onboarded on defender for endpoint but in AAD shows unmanaged?

so i have windows server 2022 as DC for my on-prem active directory its azure joined now and ad connected , however when i go to azure ad > devices  i see the server is unmanaged even though i have onboarded to MDE , idk what I'm doing wrong i could onboard win 10 easily ?