"The TV has up to 1,200 nits brightness, though the number of partitions in the Mini LED backlight has yet to be revealed by Xiaomi."
When a OEM neglects (or deliberately fails) to reveal/announce important spec features for their products that they are trying to win over potential buyers... e.g. ***sustainable luminance*** which Dolby/DTX audio tracks they FULLY supports (all tracks up to Lossless object-based or just limited tracks), ect.the BEST solution is to not mention any specs until that OEM realizes that they just can't get away with shady marketing.
To expect change, it starts with just the SIMPLE THINGS, you know.