I also organised this process at work, and it went rather well, (300ppl 10 year old), but of course no one had health data connected under the company domain, thats a crazy idea and it’s probably good apple enforces that to be deleted / moved / disentangled.
It is also clearly described how to move an account that is used privately to a different domain / mail.
It is also clearly described how to move an account that is used privately to a different domain / mail.