Concerning doorbell integration with Alexa, I have multiple Echo speaker devices throughout our home, some of them even located in the same room (FireTV Cube and an Echo show for instance). When I enable notifications for a press or motion detection to be broadcast, it comes through on all of my devices simultaneously. I would love to be able to designate the notifications to only go on specified devices or a device group. I happen to have devices tied to my account at different physical locations as well and it’s inconvenient to have them alert as well.
I’ve worked around this a bit by creating routines for each speaker/show device that I want to alert based on the but that reduces some of the feature capability and isn’t as simple as being able to simply select a specific device or device group. This would also be useful for security systems.