I actually watched the full video (at 1× speed, because Bilibili has mislabeled the app download button as 倍速.) He has some criticisms of the Ars Technica artic

I actually watched the full video (at 1× speed, because Bilibili has mislabeled the app download button as 倍速.) He has some criticisms of the Ars Technica article that I agree with. However, those aren't really relevant to the current thread. He confirms that the developer beta reviewed in the article is running Linux on ARM with all pieces of Android present, modulo Google Mobile Services replaced by Huawei Mobile Services. He then criticizes the article for concluding that it's just Android without trying out any HarmonyOS-specific features, but doesn't demonstrate them himself. To borrow his analogy, if Android is English and HarmonyOS is Chinese, why does he speak English the whole time? (And why so slowly?) The video would've been much better if he'd booted up an emulator himself to show what was missing from the Ars Technica article.