In the event anyone is looking for a way to capture ArcGIS Online content metadata to include usage for dashboarding over time, here you go.
https://github.com/AlkalineCandy79/AGOL-Meta-Snagger
I could have come up with a better naming convention, but I used up all my creativity by the time I got to the name. LOL! The image below is just a quick barely scratching the "what's possible" stuff.