Can a motion sensor work with HomeKit, Alexa, and Google Home all at once?

Most of the picks here do, but not always through their native hub. The Aqara P1, FP2, and Philips Hue sensors expose motion events to HomeKit, Alexa, and Google after pairing to their respective bridge. Tapo and Kasa lean toward Alexa/Google with weaker HomeKit support. If you're on Apple Home, reviewers in specialist communities lean heavily toward Hue and Aqara.