Virtual Audio Cable [best] -

Share your computer’s audio directly into a Zoom, Discord, or Teams call as if it were your microphone input. Real-Time Processing:

Go to your "Destination" app (e.g., OBS or Zoom) and set the microphone/input device to "Cable Output." virtual audio cable

When you install one, your computer sees it as a new pair of audio devices: Share your computer’s audio directly into a Zoom,