Wasn't there a post the other day saying they'd moved it from "Ballache" to "All but impossible" to use a local account in 25H2?
I think Windows will always be able to work without a MS account, because there are many critical (offline) deployments out there. But they'll probably make it difficult if you're using a "consumer" edition.
[1] https://learn.microsoft.com/en-us/windows-hardware/manufactu...