In the consumer tech market, Google and Amazon are termed as opposing camps. The reality on the other hand for the many shoppers who are building their smart homes up is that they are mixing as well as matching their Ring doorbells with their Nest Thermostats or putting an Echo in one room and Google Assistant speaker in the other.
Google is pushing the 2021 model Nest products as having best compatibility with Alexa for live view streaming but users can pair up their older Nest cameras and their thermostats for voice control. There are no restrictions Which Nest Thermostat models can be integrated with Alexa skill. Only Nest Doorbell will support doorbell press announcements. Nest device owners who are looking forward to use Alexa can install the skill for free from Amazon then go to Google Home app settings on a managing device and hit partner Connections, then Amazon Alexa.