A fresh SteamOS Preview release is now available for testing on Steam Deck, and although small it's probably an important one.
  • Fixed an issue causing no sound output in games that open and close audio devices quickly like Super Blood Hockey.
  • Stability and security improvements.

Pretty short list, although I’ve run into some games with audio output cutting off, so if this fixes it I would be pretty happy with it.

There is also a recent Steam Client Beta update:

  • Fixed gamepad controls intermittently not working in store browser
  • Fixed crash when playing back certain media in Steam music player
  • Fixed some causes of steamwebhelper crashes