You are welcome, good to hear you found a setting that works!

Yea there is no universal value that works for all games. One has to often experiment and find a sweet spot by increasing/decreasing the value and listening if it gets better or worse, like you just did :)

I don’t have the game, but with many games if you are getting audio crackling using Proton you can fix it by increasing pulse latency. For example PULSE_LATENCY_MSEC=150 %command%

So in your case can try: PROTON_USE_WINED3D=1 PULSE_LATENCY_MSEC=150 %command%

If there is still some crackling try increasing the value to like 250