According to a lot of research I did, the 2nd Gen Xiaomi Box seems to be on track for being a perfect all-rounder:
+ Passing-through bitstream audio sources, all HDR formats sans Vision Profile 7 as most do,
+ Certified app support
+ AV1 to solidify it
+ Respectable performance
Unfortunately, until potential software updates clear this up, it cannot do the following at the moment:
- Matching framerates
- Full third-party app spec exposure for pass-through and matching content
Lacking dedicated ethernet and 8GB of storage is also a major minus in my book - but if those small qualms I mentioned get rectified, for the price, it's a really strong box. I could still recommend the Ugoos AM8 and Nvidia Shield if local media bitbang support is a top priority, but they're easily 5x the cost unfortunately, and the no nonsense Apple TV mainly for streaming content.