If the device is sufficiently secure, it will be considered for the official support from GrapheneOS.
Of course, GOS can be forked by anyone, including Chinese OEM with insecure hardware.
Can design forgeries be prevented by selecting as designs phrases and fragments of text that are politically provocative in China? To the extent that they continue to make faithful copies to sell in the West, they are exposing labor force to provocative say anti-party content. Or they forego the imitation business?