Hi,
Thank you for posting in Microsoft Q&A forum.
Here is also the document statement:
After a site system server is installed, it's not supported to change:
The domain name of the domain where the site system computer is located (also called a domain rename).
The domain membership of the computer.
The name of the computer.
https://learn.microsoft.com/en-us/mem/configmgr/core/plan-design/configs/site-and-site-system-prerequisites#bkmk_generalprerewq
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Regards,
Allen