The FBI is pretty much recommending we use VLANs. Otherwise you need to double up equipment and you are going to run out of wireless channels. Network design will work much better using wireless VLANs for your IoT devices as I recommended a long time ago.
https://www.zdnet.com/article/fbi-recommends-that-you-keep-your-iot-devices-on-a-separate-network/
https://www.zdnet.com/article/fbi-recommends-that-you-keep-your-iot-devices-on-a-separate-network/