One of SoundSource's best features is "Per-App Audio." You can have Zoom playing through your speakers while Spotify plays through your headphones.
If you are hearing crackling, static, or audio that cuts in and out—especially with Bluetooth headphones like AirPods—the latency setting may be too aggressive. : Open SoundSource Settings > Audio > Latency . soundsource not working
Sometimes SoundSource fails because it is trying to be too helpful. One of SoundSource's best features is "Per-App Audio