Per the FAQs:
How many garage door openers can a Wyze Cam v3 Garage Door Controller control and connect to?
Your Wyze Cam v3 Garage Door Controller can only control one garage door opener. If you have multiple openers, you will need multiple controllers.
One Wyze Cam v3 with Garage Door Controller controls one door. So you’ll need a second v3 with Garage Door Controller for your second door.