This may have been discussed before; I couldn’t find it. I have the garage door controller working with Google Home. However, in Google Home you need to make a change. You have two items listed as your garage door, one being the camera and two being the controller. What you need to do is change the name of one to something else, and then try your Google Assistant using the new name or the old name. In Google Assistant, I named one 'large garage door" and the other as “big garage door”, I then activated Google Assistant and told it to open “Big garage door”, it asked for the PIN and it opened.
To set pin, go into the camera settings. Then you’ll see the option for the controller, and you can set the pin in there.
Works like a champ. Google got this working, not Wyze.