Spotify background music counts as screentime

Spotify doesn’t count background music towards screentime. I have always opened the app, played a song and exited the app (still playing the song). This background music was never timed or contributed to my screentime.

Today I walked out of the gym to see I spent 2 hours on spotify. I know my phone was closed the entire time I was at the gym, so why is my spotify time so high?

My parents and I have a deal where I am responsible for keeping my screentime everyday under 3 hours. They don’t set time limits, downtime, etc, but trust me to keep my word. I told them about my spotify glitch and we want to turn it back but how? Does anyone know how to fix this?