According to reports, Google is expected to bring four OS updates to the Pixel 6 series, its next flagship smartphones. The Pixel 6 and Pixel 6 Pro will launch with Android 12, meaning that both should receive up to Android 16, plus another year's worth of security patch updates.
https://www.notebookcheck.net/Google-Pixel-6-and-Pixel-6-Pro-tipped-to-receive-four-OS-updates.572268.0.html