In your setup the G1100 is being fed from the LAN ethernet of the Google Nest. The G1100 provides LAN traffic over the coax to the set-top boxes. There is no MoCA traffic coming out of the ONT. Only a RF signal so the set-top boxes get video.
If you have a WAN coax connection then the ONT does output MoCA at 1000 MHz which is different than the LAN frequency of 1150 MHz so both signals don't interfere with each other.
Hi I was able to do that. However once i changed the ip of the g1100 to one above the google ip and disabled dhcp on the g100 then i tried to log back into the g1100 with the new ip so i can disable the 2 and 5 radio,however it wont let me log in at that new ip address.