Hello @iKhanTT Thank you for your post and I apologize for the delayed response!
I understand your concern about performing Live migration from Server 2019 to Server 2022 to enable additional layer of protection.
Live migration on ASR enabled Hyper-V machines is supported. Live migration between two non-clustered Hyper-V hosts and between two clustered Hyper-V hosts is also supported. But the live migration between two VMs with different OSes may pose an issue.
I would recommend you to raise a support case so that we can help you better. The ticket enables you to work closely with the support engineers and get a quick resolution to your issue.
Here is the link - https://learn.microsoft.com/en-us/azure/azure-portal/supportability/how-to-create-azure-support-request to create support case.
Appreciate your patience in this matter!
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