Dynamic tone mapping can have an effect depending on the metadata of the show. For example, it has drastic effect on Good Omens, and I'm guessing that's because the static metadata might be limiting the brightness according to the creator's intent, and since DTM rejects it and maps according it to TV's capabilities, there is a big change. That might not happen with other content. So for an accurate comparison, have it turned off in both. Also, use HDR slides from calibration threads, such as on avsforum, to calibrate black levels to remove black crush. Cinema and Technicolor are the accurate modes. Stick to those if you want accurate creator intention.
So in the Uzbekistan video, are you talking about the drone shot of the city at around one minute? In that, I can see a lot of details in the dark area. Are you watching it in a dark room? I did just now and my room is dark. I don't really see black crush in that.