Does the Philips Hue Lightguide ST23 (E26) work with HomeKit, Alexa, and Google Home?
The Hue Lightguide ST23 is an Edison-shaped bulb in handblown glass.
It gives white and color light at 500 lm and has an E26 base. It suits HomeKit, Google Home, Alexa and SmartThings users through an integration (Zigbee). Home Assistant users reach it through an integration (a Matter bridge).
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.