It depends on the person. For some people like me it has never stopped working. I use Google Home with my Wyze cameras basically every day. I even relinked to it within the last month as a test and it was successful.
But other people aren’t able to link to it, some of them since as far back as August 2023.
So, this issue isn’t affecting me at all, but I am trying to help get it fixed for other people. I was the one who got this issue added into the fix it Friday event in 2023 on behalf of all the people having problems, and I linked to lots and lots of reports about this issue and told many people they should go vote for it so we could get someone to reach out to Google. I also collected a lot of logs from people and I then also brought up the issue to the Google Home team directly during one of their AMA’s as well, and I got a lot of people to contact Google support officially through various methods listed on their website for reporting these things. Unfortunately, there is only so much I can do to help resolve this issue. We’ve been waiting on Google for over a year now. They admitted the problem is on their end and was introduced when they revamped their app around August 2023. For some reason it blocks some new users from linking Wyze to Google Home, but it isn’t affecting everybody. However, it has been affecting some people for almost a year and a half now, not just a week ago. The Google support agent you talked to may have only become aware of it within the last week, but I know for sure that people from the Google Home Team have known about this issue for more than a year, especially because I personally brought it up to them and they responded about it. So there are people at Google who have definitely known for much, much longer, but the person you talked to could be right that they just found out a week ago.
Wish I had better news. As I said, the issue is not affecting me (I use it every day and it works great), I’ve just been tracking the issue and pushing for resolution for all the rest of you who are struggling with it because I like to help people and want the rest of you to have a good experience too. Since a support Agent said it just started a week ago, maybe that’s a good sign that the new Google Home team employees decided about a week ago that they’re finally going to fix this when the last team from a year ago blew it off and forgot about it. We can hope. 