Thanks for posting in the community — let's sort this out.
Could you share with me what feedback function is not working? Also, you can share with me your feedback so we can check with our team.
Thanks for sharing it with us. Are you getting any error message when adding it? Could you try to uninstall and reinstall the app? And if possible, if you have another mobile device try to check if you can add it to your favorites.
Checking back in if you're able to send your feedback successfully on your Google Home app. Let us know by updating this thread and the Community will be happy to lend a hand.
We want to ensure you are good to go, and everything is working properly. Please let us know if you are still having trouble, as we will be locking the thread in 24 hours due to inactivity.
We understand. Your feedback is appreciated and you're welcome to send one anytime. We'll close this thread now. Should you need our help, feel free to start a new one and the community would be glad to assist you.