I have a Pixel 6 Pro and no included app to play on device music. The app is the default music app and it buffers music on device. Press play and get the circle of buffering. Skip track and buffering. Also stops music for almost anything. Loss connection and music stops with notification for no data and music is on phone. I miss Google Play Music because it just worked for Device music, no stops, buffering. Open GPM and my songs were there. Open YTM and still have to find my music.