Beware linking Tuya/Smart321 accounts to Google Home via the iPhone apps. When I did this for a home shared with my wife, the devices all appeared as “offline”. They were working perfectly according to the Smart Life app and Amazon Alexa. The solution was to delete the Tuya/Smart Life apps from the iPhones and then relink the switches using the userid/password for the Tuya/Smart321 account. BTW, this problem only happens if there are multiple members in the Home family with control privileges.
