The Google Pixel 4 and Pixel 4 XL introduced a new useful feature for those who may be hard of hearing or those who simply love to consume content with captions. Live Caption enabled the ability to transcribe dialogue in real-time not just from TV shows, but from any other audio played the Pixel like your own videos, IG stories, and even memes.
Live Caption on the Google Pixel 4 XL
The Pixel 2 and 2 XL have both been silently updated to support the Live Caption feature. The latest version of the Device Personalization Services app enables the option for Live Caption in the settings as originally posted on Reddit. The update to the app appears to be rolling out now but users who sideloaded the latest APK also confirmed the new features arrival.
Now if only Google would update Assistant and add Astrophotography to the Pixel 2. The latter is available for the 2017 Pixels, though unofficially via sideloading the GCam mod.