Configure your now-playing widget for OBS / Streamlabs
Choose which connected service supplies playback data to the OBS / Streamlabs widget.
The widget reads playback state from the desktop app running locally on the same computer as OBS / Streamlabs.
Enter this code in YouTube Music Desktop, then leave this page open.
This is exactly what OBS / Streamlabs shows. Selecting a style or theme updates it instantly.
Add this as a Browser Source in OBS / Streamlabs. Resize as needed within OBS / Streamlabs.