MrBloodyHyphen- I can tell you it makes a big difference on my phone. The sound is more full, loud and overall better with than without DA activated. Maybe they can make something of their own to make the sound sound as good? I guess, I’m just saying whatever DA does, it’s improved vs the original sound.
Anyway, I think Nothing should have it. I mean, way cheaper phones from xiaomi have it, so there is really no reason not to.