Android 13 is being developed at a good pace, as Google periodically releases new test versions as expected. This system is expected at the end of the summer, for the first update to Google smartphones.

Still without the planned and expected release date, an abnormal situation has now arisen. Unexpectedly, a Pixel 4 user received an update to Android 13, even though it is a beta version.

Google has its own test program open and it can be used by everyone who wants to try out Android 13. It's not just limited to Pixels, but it's unlocked it on several models from other brands, so they can rate this version.
What this Pixel 4 user did not expect is that their smartphone will get Android 13 version TP1A.220603.002.A1. It appears that this is reserved for Google internal testing and should not be made available outside the company.

And the weirdest, and even funny, is that this user didn't score his Pixel 4 in any Android 13 test. He was way off getting this or any other version of Google's new platform, which hasn't even been released yet.
In the description he gave on various internet channels, the Pixel 4 owner revealed that from that moment on he had been experiencing issues with the smartphone.  The worst of it was the apparent incompatibility with the Play Store.  Reinstalling the app and even resetting the Pixel 4 were actions that did not solve the problem.

Some Pixel 4 users have reportedly received an OTA update for Android 13 TP1A.220603.002.A1.  The build number for Beta 3.2 is TPB3.220610.004.  Looks like we have another case of an accidental OTA rollout!https://t.co/DU3ndCJQgxhttps://t.co/uc3y77GWeNhttps://t.co/G8KYJCds4h pic.twitter.com/Dogut1HdKg
- Mishaal Rahman June 22 2022
Despite being the only known case with Android 13, this mode seems normal.  In previous years and in various versions, there were reports of situations in which Pixel smartphone users inadvertently received updates.
With Android 13 almost here, Google is now speeding up the pace of its development.  The final version should appear soon, paving the way for the expected update, for both the Pixel and all other smartphones in the Google ecosystem.