Thanks for reaching out. I'm sorry to hear that you're having an issue with inviting people to your Google Home app. I'd love to know more about this.
Looking forward to your response.
Anyone who joins the customer’s local Wi-Fi network gets an option in the Google Home app to join the home. This action doesn’t give the person the access to the customer’s devices, but it sends a request to the current home members. The current home members can approve or deny that request.
Certain accounts don't have the ability to be a home member. You can't invite the persons with the following accounts:
Check this guide for more information.
I wanted to follow up and see if you are still in need of any help. Please let me know if you are still having any trouble from here, as I would be happy to take a closer look and assist you further.
I understand how this is important for you. We're always looking for ways to improve and we'll take it as a feedback.
I also suggest that you send feedback using your devices by saying, "Hey Google, send feedback," or by following the steps on this link. Let me know if I can assist with anything else, otherwise I’ll be locking this thread after 24 hours.