Thank you for the answer !
I don't really like CMG as it uses classic Azure resources. Microsoft is not clear about the future of this feature.
Windows Update for Business seems the way to go. We tried to setup it but it looks like it requires the devices to be Azure AD joined for the Analytics as prerequisites ? We can't enable that part and without Desktop Analytics it seems it doesn't work.
I don't really like CMG as it uses classic Azure resources. Microsoft is not clear about the future of this feature.
Windows Update for Business seems the way to go. We tried to setup it but it looks like it requires the devices to be Azure AD joined for the Analytics as prerequisites ? We can't enable that part and without Desktop Analytics it seems it doesn't work.