Like Ohnomywifi, I am having the same problem. No QR, API status does not contain a psk to connect manually.
I've been running two google mesh networks for 5 years with no problems. This one device is presenting problems but I wanted to try one more time before throwing it away.
Numerous reset don't make it better.
You sent him a form and worked with him offline?
I'm sorry to hear that you're still having an issue with your Google Nest Wifi. We'd like to take a deeper look into this — could you fill out this form and let us know once you're done?