This is totally picking at nits, but wanted to pass it along. All platforms (desktop and mobile)
When I’m looking at an album, each track has a “3-dot menu” icon on the right side. When I tap that, the resulting menu has a little “notch” pointing at the row. This notch should line up with the 3 vertical dots, but never does. Sometimes it’s to the left, sometimes it’s to the right. It seems to have to do with where the touch event is in relation to the button. It’s off-center and drives my UI-alignment-OCD crazy!! 
I first thought this was just on my phone (that’s where i noticed it), but it happens on desktop too!!!