I used the original Overworld tileset for an experiment in procedural world-generation using tilemaps. This asset was very robust and required only a small amount of tweaking to get the orientations I needed for my system.
https://jclayton128.itch.io/atw
I'm thinking about using the newer RPG Town Exterior tileset to provide a way to "zoom in" on the procedurally-generated overworld. I think it is doable, and the new asset looks like it will be interesting to play around with.