Just wanted to come and add my voice to this list. I too have been experiencing these sound issues since the release of endwalker, and had previously experienced no issues before then. Its absolutely ridiculous that this has went on this long, and that their solution in the patch notes was to lower sound quality (which did not work). Has anyone used the 3rd party sound app they are trying to sell you to see if that fixes things? It wouldn't surprise me that the pay option fixes it... These sound issues have pretty much removed all joy from playing the game.