[ovirt-users] official status of Windows support in oVirt/RHEV ?

Hi, can someone please point me to resources about official status of Windows support in oVirt and RHEV? are there differences between oVirt and RHEV? i'm not talking about technical details, i know that eg. Windows 2008 or 2016 runs in oVirt, it's about support contracts. i looked at https://www.redhat.com/cms/managed-files/rh-red-hat-virtualization-datash..., there you have the terms "Full support", "Support" and "Vendor Support". What's the difference? thx matthias