As it seems from people that have got the Mi Mix 3 there is still no Widewine L1 in it.
This means any streaming service that uses DRM like Netflix can only play 480p/576p.
Widevine is a Digital Rights Management (DRM) feature. It is able to decrypt encrypted media properly for viewing in HD.
This means that, if a user attempts to watch content via Netflix or Amazon Prime, HD content will only be played out on a device that supports Widevine L1 other will only show SD which is 480p/576p.
Please make your voice heard as we need to get this fixed. Even Oneplus have sorted this out and Huawei updated the Mate 20 X in an FW to fix L3 > L1.
Here you can see it, where it says L3
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