This is about behavioural feature parity with my experience on Safari and Firefox (I have only provided a screen recording of Safari since they're pretty much the same). When typing an entry in the search bar and navigating to the end of that entry with the right-arrow key to specify it further with a forward-slash, e.g. kagi.com --> kagi.com/assistant, using that right-arrow key automatically adds a / in Safari and Firefox. In Orion, however, the full https:// address is shown instead. This adds an extra (albeit small) frustrating step to specifying each search further. See the screen recordings below.
Parity with Safari/Firefox would be preferred, and my preference would also be to not show the full https:// address.