Extending My Orbi RBK50 with Unify Access Point

I have connected several WiFi "extenders" to the Orbi.  Each is an entirely separate, descrete device.  Ubiquiti Access Points are a much more complicated ecosystem, with apparently more advanced features than the Orbi system.  My guess is that you are more likely to get an informed response by asking Ubiquiti users than Orbi users.

With all these "outside" WiFi devices needing help, I am puzzled that one access point will make much of a difference.  To be effective, it will need to be close to an outside wall, which will improve WiFi coverage to that "outside", but not do anything for the outside of other walls.  If the goal is to improve response to only certain Ring devices, my choice would be much less expensive "extenders".