I am afraid that all the new cameras and doorbells released within the past year are exclusive to the Google Home app. I fully understand the frustrations of not having your new Nest cams in the Nest app like you may be used too. However, you can now use the Google Home web app to view your cameras and doorbells on a desktop computer.
The new Nest cameras and doorbell are exclusive to the home app because we wanted to create an integrated experience with your speakers and displays. A nest aware subscription applies to all of your cameras, speakers, and displays in the same home structure. Thank you for your continued patience, and support.