This is how you can get Android 13 on your Pixel phone
Google announced on August 15th, 2022, that the Android 13 update would begin rolling out to its Pixel device portfolio. However, as is typical with Android updates, this does not mean that if you have a qualifying Pixel device (a Pixel 4 or newer, in essence), you will immediately see the update available. Google frequently takes several weeks to deliver the update to all devices.
While there is always the option of using Android’s developer tools, a Mac or PC, and a USB cable to immediately sideload the update, there is also an easier, computer-free option. If you have a Pixel device and are tired of seeing the software update screen say there’s nothing new, here’s a trick to force the update to appear.