Google Nest Community

It has to be the Google Home app. The Nest app doesn't work anymore

Nope. I think it was a app update. I have android, wife has iPhone and both working now

I have contacted Google many times past 2 weeks. And as of 2 days ago, our new 4th generation thermostat is now working in Google Home app. Also the settings tab is working and delete device option is showing as well. So I guess it was fixed for now....