There is nearly 50 pages worth of information of PC specs, fixes that didin't work and fixes that did reduce the problem on the main thread alone, not mention sereval other threads. And that's not even including many people are sending bug reports ingame.
And yes, this is a 100% problem for many people. Might not be your case, but the sound glitch completely turns the game unplayable unless you don't mind ruining the experience by muting.
The temporary fix they suggested two days ago has already been tried and proven to not work two weeks ago.
I completely understand they have several issues to fix, but they are very quiet about this particular one, even though there is a group of people completely unable to play the game they paid for. This particular issue should be their top priority. I also understand being angry solves nothing, but being on a similar position I completely understand OP.
We're not asking for them to fix it today, but a simple "we're aware of this issue, and working on a fix" would suffice.
Edit: The problem you're describing seems slightly different from what we're experiencing,
This is what the game is sounding to us since 6.0 hit, and that's a mild case.