Hi Ying,
I have it in local only. Simple block with GB. Default button. The idea is to use the taxonomy like a separate tags level.
Container -> Button -> Dynamic ->
Dynamic text type
List of terms
Taxonomy
custom-taxonomy
Dynamic link type
Term archives
The button is working just fine and I am looking to use the taxonomy featured image to either enhance the button visually or to just add small sized image as an icon, linking to the taxonomy archives.