Also if you pull down the today center or whatever it is on iOS, it has a music player interface you can drag the volume there too

You are my hero! Does this get added to the list of worst controls though since it's so buried?

You can also just drag directly on the slider that appears on the side of the screen when you press the volume buttons

Lovely. Never would have thought about that. Thank you!

It's already included in the list, between the pricing UI and the Windows XP disks