Yup. Unfortunately as of now all new Google cameras only work with the Google Home App. Sounds like the vision is for the google app to replace legacy Nest App. This is especially frustrating due to the lack of web stream the home app does not have like the nest app, which is were I view all my Nest cameras.
It looks like we have come to a solution so I'm going to be locking this thread. If you have any other concerns or questions, please feel free to create a new thread.
Have a great day.