Is there a way to know which SSID network a device is attached to?

Thanks @syaoran for the suggestion.  That can definitely work.

Unfortunately for me, I am trying to figure out which device is generating a bunch of “Unnamed Device”.  These entries pop up on my Google WiFi list of devices and seem to be multiplying so I’m trying to isolate each device on a separate network and see if the “Unnamed Device” only pops up on the “quarantine SSID network”.

I hope that makes sense.  Sorry, it’s a long, drawn out way of saying: I cannot check the device individually.  To make things worse, I have tons of smart devices so I want to try and move the devices in batches to a “quarantine SSID network.”

Thanks again for your help 🙇