https://developer.android.com/about/versions/13/get
The easiest way to get Android 13 on a supported Google Pixel device is to enroll your device in the Android Beta for Pixel program.
Enrolling is a simple and fast process, and it’s highly recommended for early adopters and developers. In most cases, you don’t need to do a full reset of your data to move to the Android 13 Beta, but it’s recommended that you back up data before enrolling your device.
Once enrolled, your device will receive regular over-the-air (OTA) updates for the duration of the platform’s release cycle—including Quarterly Platform Releases (QPRs)—unless you opt out earlier…