[dbg31415]

I hit a similar issue on my MacBook Pro. Whenever I watched YouTube or streamed Spotify while playing a game, the audio broke into little "clipping chirps" and static.

For me the culprit was Game Mode. I still don't really know what it does, but disabling it fixed everything. None of my games come close to stressing the CPU, yet Game Mode was throttling anything that wasn't the game. It was also on by default, which felt like a design miss.

For MacOS, a better approach would be to check what's happening on the second monitor or at least avoid throttling apps that aren't being displayed. Assuming the game deserves all system resources and that the user doesn't want to watch or listen to anything else is a bad bet.

Anyway, the good news is the fix on a Mac is simple once you know where to look. (=