Test #2, I place the MS driver back and upgraded to Win2004 built, sound STILL works.
Test #3, upgraded the driver now to the 2004 built 6.0.8945 and it BROKE, so revert back to MS driver.
I *think* I tried that, but in all the chaos of trying to get my microphone functional in “virtual school constant Google Meet” time, I may have skipped that specific combination. I just ended up going back to 1909 completely but I know that won’t work forever.
I will give 2004 a shot with the MS driver, which is the only thing I ultimately found would work instead of using the oh-so-lovely Realtek one.
Hopefully I can muddle my way through getting the MS driver to stick with the 2004 build!