Re: Block Windows 10/11 Home enrollment

Even if he will tell you it wil not help, it is not possible to stop AD Registering (certainly not on some detail like Windows Home). There is some Conditional Access trick with Hybrid Join: see here for example: https://www.reddit.com/r/Office365/s/WnqYrloZnQ

Device Platform Restriction and stopping Intune Enrollment is the best you can do