Hello there,
Yes you can disable the protocol and still your organization might pass through but it is no recommended as you have stated.
I like to quite this from Microsoft article :
"Internet Protocol version 6 (IPv6) is a mandatory part of Windows Vista and Windows Server 2008 and newer versions. We do not recommend that you disable IPv6 or its components. If you do, some Windows components may not function".
We recommend using Prefer IPv4 over IPv6 in prefix policies instead of disabling IPV6.
Hope this resolves your Query !!
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