I was browsing through Twitter while Spotify was playing in a background tab and I needed to go to Spotify tab to pause the song, so I could hear the Twitter video more clearly. I wish that when a video with sound is played on Twitter my Spotify sound volume gets lowered. Much like apps work on Android, when we play a song on Spotify and watch a video on another app, the background sound gets lowered, so we can hear better what is in active use.