Skipping a song or looking at your schedule in a calendar are good ones, but Facebook (for example) as a developer wants you in their app for the ads as do the bulk of developers that make money on ad revenue. I don't know if it's an Apple no-no to have interactivity or not. Been an Android thing almost from the beginning...Widgets are a waste of time for me; we should have them interactive like instead of opening apps we can do stuff on the widget, what’s the point of just for looking at info
Apple's only like a decade and some change late to the part with this (and it's kind of nuts that widgets were a "feature" the past 2 years).