The Orbi mesh is in access point mode. I´m running a TP Link ER605 today but find it limiting in options to more granulary control the QoS-settings and I also get easy access to check up on the connection at the house when travelling through the app.Well. To be honest, it seems strange to me to look for an additional AX router to manage QoS in Orbi mesh. If so, I would buy a router without WiFi (not Asus). However, I don't know the Orbi at all.
I want a simple setup and gui, and I haven´t found other routers in the same price range without wifi built-in with all the same «bells and whistles» as the Asus routers, unless I want to do a lot of the setup through CLI commands myself.