Wireless Printing

A separate IoT WiFi network is not a requirement.  As the screen shot in message 8 above illustrates, the Orbi 860 product supports WPA2 authentication on the primary and guest WiFi networks, as does every other Orbi router I have found.  (As does every Xfinity WiFi router as the screen shot in message 16 shows.)

For the vast majority of us, WPA3 authentication is a distraction with no practical value.  99.9% of the devices we already own are not compatible with WPA3, so making WPA3 the only authentication protocol would immediately block them all from connecting.  Thus, newer systems now support either only WPA2 or a combination WPA2/WPA3. This allows that one new device to be "more secure" (HA) when it could just as easily connect with WPA2 and be done with it.