DT-770 Pro 250 Ohm : Comfortable, well built, but a very non-flat frequency response

I have bought these headphones because they are famous and are some of the most popular headphones around. I see musicians wearing them in every other video. So I had had the assumption that they were very good given their popularity. It turns out, popularity is not a sufficient metric for skipping due diligence before buying something. I was thoroughly underwhelmed by the peculiar frequency response of these headphones. Even more surprising is the fact that this is a conscious decision by the manufacturer to make them sound like that and that is a widely known feature of this product. I should have looked it up before buying, of course. The frequency response is very far from flat. It severely lacks in the mid-range and has a somewhat unpleasant peak somewhere in the range of the sound "s". The bass is quite full, but boomy and not well defined. The highest "crystal" frequencies are missing or severely recessed. My subjective impression matches published measured frequency responses quite well. Even though the exact description of the frequency response may be subjective, but it undeniably sounds different from e.g. ATH-M50x, which are much flatter and much more suitable for monitoring and mixing.