[samus]

> Depends on who you ask. What’s the region in question? What counts as a standard? Is Nynorsk codified by ISO? Et cetera.

A government regulating it by teaching it in school and actively using it in public would be a strong criteria. Alternatively, an established body of literature that serves as a model (that's how written Italian evolved).

> It‘s used plenty in public in Cantonese-native areas

Yes, that's also what I said. However, any official announcements or documents are quite unlikely to use it.