To use your Windows 11 PC as a Bluetooth speaker, head into Settings > Bluetooth, turn on "Bluetooth," click "Add Device," and pair your device. Download and install the Bluetooth Audio Receiver app ...
To use Separate App Sound on a Samsung Galaxy phone, go to Settings > Sounds and Vibration > Separate App Sound, toggle it on, choose the app (e.g., Spotify), and select the audio device (e.g., ...