Devices in other networks

Hello all,

I have two routers at home, one for general use that is from my internet provider and other that is for IOT devices and the nuc where homeassistant is.

The IOT router is connected to the provider router with ethernet cable.

My question is can I connect my google home that is on the network from the provider’s router to homeassistant to have the media player on the dashboard?

I have the nabucasa remote acess activated and sucefully connected google home to acess home assistant entities.

Is it a good option to have two networks or should I have all devices on the same network to help with the integrations?