Please mention whether you’re on stable, beta, or a different update channel. There’s a good chance most bugs on the stable update channel have been fixed already, so anyone on the beta update can let people know if the bug they’re facing is already fixed.
I’d recommend trying the “Pause games” decky plugin, it can pause the game process immediately before suspending which fixes most of the audio bugs.
Ah! I actually meant to do that (saw that on another post), but the second to last Deck update broke Decky Loader’s injection sequence, so I forgot about it in the meantime.
ETA: the latest Deck update corrected that issue, and Decky works fine, now.