1. If Google is determined to phase out the Google Nest app in favor of the Google Home app, simply change the "Cameras" option in the Google Home app so it brings up the current Google Nest app interface within the Google Home app.
2. Add the new 2021 Google Nest cameras and doorbells to that same Google Nest app interface, with all of the functionality of previous Google Nest cameras and doorbells.
3. Add the new 2021 Google Nest cameras and doorbells to the home.nest.com website interface.
4. Provide a simple, workable process to allow users to update the SSID and password for a camera or doorbell when a user has to change or update their WiFi router (one that does not involve removing the camera or doorbell and doing a factory reset).
5. Provide a simple, workable option to allow users to enter an SSID and password when adding a new camera or doorbell if the built-in use of an "assisting device" does not work.
I'm all for #4! But not so much the rest. I get where Google is going, but honestly, I would prefer everything under one app (Google Home). Since all my other devices are under the Google Home app, including 30 lights and 5 Chromecasts, and a variety of other "works with Google" stuff, I would prefer Google to enhance the Google home app to include the features of the original Nest app. They are already coming out with a "Home.Google.com" that will have the same web interface as the app (next year), and hopefully they will add functionality to the Google Home app like scheduling, etc. for the cameras. But, adding things back to the Nest environment (like cameras only), would not be helpful since they would still have to maintain 2 environments.
I own a custom software engineering company, and the first thing we always do; is interview our clients (users and managers), and ask them to list everything they like about their current software, and what they don't like, and what they would like. Then, we take everything they currently like, enhance all the things they didn't like and add they things they want. I have no idea why Google released these cameras and didn't build a better mousetrap so that people would WANT to migrate. Really bad leadership and management.
I would be quite happy if, as you suggest, Google enhanced the Google Home app to include the features of the original Nest app, came out with a "Home.Google.com" web interface that included the features of the "home.nest.com" web interface, and added functionality to the Google Home app like scheduling. It's a nuisance to use two apps just for our cameras.
Sadly, I don't trust them to migrate the features of the NEST app to the Google Home app. I fear they will take it all in a new direction and loose all the elegant and refined design of the NEST app that I have spent so much time learning and getting use to and give us something that is clunky and not well thought out. And even if they do I fear it is 12 months away. I hope I'm wrong. They way they seem to release product always has "the devil in the details".