

That’s because a lot of streaming stuff is made for 5.1 surround, and they don’t care to provide the 2.0 (stereo) audio. Or sometimes it will have the 2.0 audio but you have to manually change it in your streaming app preference because they will let 5.1 as default. That makes it so that the sound of 5 speakers + 1 subwoofer now goes out of two speakers (or headphones). That’s why the dialogues are inaudible and the actions scenes are so loud.
Looks like a Kilkenny