Looking for better results better results with UE's fracture tools

Was watching Quixel’s video on using the fracture tools to create static assets. The end result is that each submesh has a nice silhouette and fidelty where the concrete has broken off.

When I use the tool, the clusters used for fracturing are pretty simple and create very game-y looking results with hard edges and smoth holes. What’s Quixel doing to get suchnice fidelity? Are they applying noise to the clusters to get a more interesting silhouette? Or displacing the submeshes after the process? Any help is appreciated