It would be really cool to have a feature similar to Brave where it shows how many ads/trackers and how much bandwidth/time you have saved. It would add a little extra differentiation from other browsers and its something that is really cool. You always see posts on twitter and other social medias of users posting their Brave dashboard and it gives great exposure too Brave.
Having something like that within Orion may help with marketing as it is something that is cool and fun to observe/share.
Screenshot of Brave feature in action: