To elaborate further, with the latest Android 10 update on Redmi Note 8 Pro, the HDR support has been snatched away and in fact, it is something even the DRM app specifies as not supported when indeed Redmi Note 8 Pro on-board Android Pie supported HDR.

It is not just Redmi Note 8 Pro but Poco F1 is undergoing the same issue post update to Android 10 where the Netflix HD streaming capabilities have been uprooted thereby aggravating the users. According to a thread about the issue on a popular forum, Poco F1 users state that they are left with Standard Resolution (SD) as the maximum resolution on Netflix with no toggle to HD after they updated their devices to Android 10 as the Netflix now detects Widevine L3 support only (SD content). It is yet to find out when will Xiaomi fix these issues on Redmi Note 8 Pro, Poco F1 and others facing the issue.

 

Sources 1, 2, 3, 4