I have three TP-Link Deco 7 Pro BE14000 Tri-Band Wi-Fi 7 Whole Home Mesh System units configured with Access Point mode and laid out in "topology 2" per https://www.tp-link.com/us/support/faq/3753/.

The main unit is wired to my wireless router, and the other two units are located elsewhere and connected wirelessly to the main unit.

This configuration requires I either duplicate a wireless signal from a single location (main unit + wireless router) or disable wireless broadcast on my existing wireless router. I do not wish to replace my existing wireless router with the main Deco unit.

Is it possible to configure the main Deco unit to connect to the existing wireless router wirelessly, rather than using a wired connection? In other words, all three Deco units would use a wireless backhaul?