Fantastic question. There is so much IOT garbage out there that someone might slip into my network, what can I do to easily detect it?
I was aghast when my partner connected a pet watering bowl to the WiFi.
I suggest you just firewall it away from your important machines and then don't worry about it.
My most worrisome IoT device I have on my network is a digital picture frame my wife connected, but I was surprised the company routinely updates it even though it's on Android 6 (!).
https://support.frameo.com/hc/en-us/articles/23433637149842-...