1) they need the information of what works and what doesn't.
2) they need the system information that only a few people have given them.
3) they are trying to give you an alternative in the meantime while they investigate it.
4) this is not a 100% problem, the worst i've had since 6.0 dropped is the "ECHO" of scenes in big indoor spaces, otherwise I'm having no issues with sound other than the occasional system sound drop that takes all game sound away till restart. that has been happening since before 6.0.
What you are calling solutions is actually temp fixes while they work on the problem. why are you yelling at the people who are having to work on SEVERAL issues at once and expecting them to give you a fix the next minute (how I felt your post is going not what you said).