Safari (and other browsers) have a shortcut for quickly navigating to ".com" domains: Just type the domain name in the address bar and press control+return. The browser will automatically append ".com" to the domain and navigate to the site.
Not a major feature, but it's become muscle memory for me, so it would be neat to see it in Orion.
In the attached video, I type "kagi", then press control+return, and Safari navigates to kagi.com. (The keyboard viewer is just there to show the keystrokes.)