The informative statement "For example, in the home environment, a separate WiFi network can be used for IoT devices, and routers often provide a "guest" network that can be used for this purpose" is not correct since usually such "guest" networks only allow devices to access the internet but not each other (which would only work if the IoT devices use a hub on the internet or in a DMZ). So setting up such a network may require a separate router, etc.
The informative statement "For example, in the home environment, a separate WiFi network can be used for IoT devices, and routers often provide a "guest" network that can be used for this purpose" is not correct since usually such "guest" networks only allow devices to access the internet but not each other (which would only work if the IoT devices use a hub on the internet or in a DMZ). So setting up such a network may require a separate router, etc.
Suggest removing or modifying this statement.