I don't watch it on my phone very often, much rather use a decent screen. This version phone has been designed for the Chinese market and not for global release. Netflix has never been released in China officially. I did try to see any specs for DRM but other than that you saw, I cannot find any confirmation one way or the other I'm afraid.
DRM info is L1
Netflix app is L3 and SD quality
Tried to update certification, FIDO and Alipay updated successfully but only Widevine failed, error code is 1
Same here, LE in Netflix AND Google Wallet not working anymore. Shure it has worked after flashing. Now it says Software Problem....should be fixed with next Rom hopefully