Does the Arlo Video Doorbell (2nd Gen) work with HomeKit, Alexa, and Google Home?
The Video Doorbell (2nd Gen) is a square-video doorbell with a 180 degree view that runs on a battery or on doorbell wiring.
It suits HomeKit, Google Home and Alexa users, with native support through the maker's cloud. Home Assistant users reach it through an integration (the maker's cloud).
Limited: Unofficial cloud API access; Arlo can break it at any time; Requires two-factor authentication through an email or push channel; Not a core integration; not reviewed by Home Assistant[2]
How the device gets into the platform on this route. The headline is the best route: local before cloud, direct before bridged, core before community. The methodology page lists every level.