[tribby]

> has had any ability to tell me where, how often, or even whether a particular component is in use in the production UI

I built a dashboard to display this for the design system I work on at my day job to give product designers better visibility into production, using a library called react-scanner[0] and some logic related to the way our different product repos are structured / places where the component names are different between figma and react. there are probably other libraries for this sort of thing in different ecosystems, and you can always build your own with a parser as well.

[0] https://github.com/moroshko/react-scanner