Apple is working on bringing their advanced 'Vision Pro' Eye Tracking technology to a future ...

HomePod executes the command while Siri responds "Table lamp turned on." 2 HomePod with integrated camera gaze controls - Home Smart device.

source https://www.patentlyapple.com/2023/06/apple-is-working-on-bringing-their-advanced-vision-pro-eye-tracking-technology-to-a-future-version-of-homepod.html