What it really boils down to is the dt770, while a good and well respected set of headphones, is not a high end pair of headphones. It's still firmly in the range of cheaper consumer grade electronics. I've never listened to them myself before but I've heard they're lacking in several areas. I tested almost every gaming headset on the market back in 2019-2020 and I found the SteelSeries Arctis Pro to be a great gaming headset with really hifi sound, especially if you get it with the Game DAC. For about $350 it sounds as good as a lot of my $700 plus headphones.

Edit: Downvoted for telling the truth.

Take a look at that treble response curve.

https://www.rtings.com/headphones/reviews/beyerdynamic/dt-770-pro

Also notice that 6.5 for gaming. Compared to the 8.0 gaming score of the Arctis Pro. Meanwhile it has a much better treble response while staying close in the lows and mids. I'll back my shit up.

https://www.rtings.com/headphones/reviews/steelseries/arctis-pro-wireless