I was playing the PS4 version. I tried quick load and it didn't work for the sound issue. I think it is likely an issue with overlapping sounds.
It's unfortunate that quick loading doesn't fix it (if only temporarily) like it does in the Linux version. I also think that it may have to do something with too much sounds or too much going on at the same time, thus its prevalence in combat, at least in my version of D:OS.
Neverwinter Nights had a bit better camera function in terms of zooming in and out, but these types of games often have problems like that.
I can understand this to some extent, because a very low camera angle would also widen the visual range, requiring more (potential) processing power and thus, it would increase the system requirements of the game. This is also the case with a higher zoom out factor. Another matter is that if you could lower the camera so much that you could see the ceiling or sky, those had to be designed too in every area, although only for a certain group of all players (well, NWN simply ignores it to some extend or covers it with fog, but that is an imperfection some devs wouldn't want to accept in their work). In a nutshell, you don't need to fill a box that no one has a key to.
Of course I also often wish for more camera freedom, but I can understand its limits in games with a top down view.
It's probably not difficult to change in a patch or update
Ah, don't fall into that popular trap. In almost every documentation of game development, it is stressed how much of the dev process consists auf cutting features the devs would have wanted in their product, but just didn't have the time or resources to include. Or vice versa, failed projects often suffered from
"featuritis" and the inability to deal with it accordingly.
That said, the simplicity of a modification varies vastly with its implementation and the overall code. I don't think anyone who's isn't involved directly can judge its complexity.
Same goes for Battlefield games these days. They're so redundant
But alas, most of them sell very well. So there's not much motivation for developers and publishers to change them, but a high risk of killing a winning horse. A sad truth with a wide number of media, e.g. movies, tv-shows, books, comics etc.