This is most definitely not a bug. The underwater music is programmed to keep playing until the song ends, whether you're underwater or not. This is because a sudden stop in music could be jarring. Also, the soundtrack to this game is amazing. Sometimes I go underwater for a second just so I can vibe to Shuniji, Axolotl, or Dragon Fish. They're all great songs.
Simon Zuckert
This is most definitely not a bug. The underwater music is programmed to keep playing until the song ends, whether you're underwater or not. This is because a sudden stop in music could be jarring. Also, the soundtrack to this game is amazing. Sometimes I go underwater for a second just so I can vibe to Shuniji, Axolotl, or Dragon Fish. They're all great songs.