It’s called Taggbox (it has a similar function, though it pulls social media feeds instead of from a google drive.)
I was able to re-enable that plugin afterwards and both still work. In hindsight, I should’ve suspected it was a plugin conflict to start – every time I tried to push the button to grant authority, it would try to authenticate and then dump me into the Taggbox admin screen. Hope that helps & good luck ??
Thanks again!