For example, the expanded module might show playback controls for where you left off in a Music playlist and in a second one for a podcast episode in the Podcasts app. Clicking the Now Playing module expands it to reveal all open apps that can deliver audio, including third-party audio sources. The Now Playing module shows information about the currently playing song, album, and artist along with a small album artwork thumbnail, a play/pause control, and a skip forward button.
The Now Playing menu bar item supports third-party audio sources like Google Chrome and IINA too.