is it possible to have multiple instances of the same Glance widget? I'm not seeing any documentation around state definition and worker communication/interaction when dealing with more than one instance

Yes, having mutiple instances of the same Glance widget should work fine. They will have unique app widget IDs and separate workers. GlanceStateDefinition should also continue to work with multiple widgets. The

fileKey

param for

getDataStore

is unique per-widget, so there will be separate DataStore for each widget as before

Is there an example of this somewhere?

Check the source code of PreferenceGlanceStateDefinition. It does what Willie is saying. That being said in the upcoming changes with recomposition support the state definition won’t be needed anymore. You can use the Glance ID to setup different configurations