Google has released a new Pixel Feature Drop for the Pixel 3a series onwards. The March 2022 update introduces several new features to the likes of the Pixel 6 and Pixel 6 Pro, along with Android 12L. The March 2022 Feature Drop is rolling out now as an over-the-air (OTA) update.
https://www.notebookcheck.net/Google-brings-new-features-and-Android-12L-to-the-Pixel-6-and-Pixel-6-Pro-with-March-2022-Feature-Drop.606989.0.html