Tried on Monterey and also Ventura.
On the first install of Monterey or Ventura the sound works. (I just migrated from an Intel MBP Mojave account )
However, after a restart, the sound is out. I have no idea what is the issue. Reinstalling Monterey or Ventura brings back the sound but as soon as I do a restart. It’s gone again.
Anyone knows what’s the issue? I install my game on an external SSD.
Edit: I found that if I plug an earphone into the MacStudio, the sound from the speakers comes on! (No sound in the earphone because the output option selected is a USB to audio device.)