VM DC restore

Hi,

I am writing a document for a disaster recovery for our DC's.

We have  2 server 2019 Hyper-v hosts and each have 1 VM DC. we backup each DC with Backup exect and hyper-v agent.

My question is, How to recover the VM DC that has the 5 FSMO roles?

I understand becuase we using Hyper-v higher then 2012 and VM DC is also 2012 R2 we can just resore the VM DC and no issue with Generation-ID. is this correct? or we still have to do a non autherative resotre of the DC with FSMO roles?

Shahin