Hi there, Pharrell00.
Sorry for my late response. Thank you for all of your patience while waiting for a reply. I just wanted to make sure that your issue is addressed.
New Nest Hello Doorbell, and other new cameras are only available on the Google Home App. Not on the Nest app. You should have functionality however, when you are using the Google Home App. You can keep your Nest Secure devices connected to the Nest App.