Be careful if you are using WPA3, as it may not like the WiFi 5 units.
Correct me if I am wrong but I didn't think older WiFi devices would connect to a WPA3 only network anyway. That basically means you need to have WPA2 enabled anyway, sue you can segment it via VLANs but you'll probably have something which you want to access your full network not currently WPA3 capable.