Does the Aqara Thermostat Hub W200 work with HomeKit, Alexa, and Google Home?
The Thermostat Hub W200 (SRT-A06E) replaces a 24 VAC thermostat and doubles as a hub.
It is a Zigbee hub, Thread border router, Matter controller and Matter bridge. It is sold in the US. It suits HomeKit, Google Home, Alexa, SmartThings and Home Assistant users through an integration (Matter over Wi-Fi).
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.