Maybe I'm missing something.

but is there a way to setup port security in omada where you can set it up that only certain devices are allowed to connect to a port by their MAC address. If I remember correctly the tplink switches can do this natively when not controlled by omada, where it will reject a device if plugged into a port that already had something else plugged into it. Similar to how Cisco switches have port security where you can limit the number of devices allowed to be remembered on a port before locking a port down.