Android 13 is in beta testing mode, and it is in its final stage to launch. But currently, It is only available for Google Pixel devices. But very soon, it is also available for non-Google devices, and Galaxy S22 Ultra is one of them.
One UI 5.0 is the upcoming skin from Samsung, which is based on Android 13. Samsung is currently working on it, and very soon, the One UI 5.0 beta will be available to download. Samsung Galaxy S22 Ultra is the very first device of it.
Last year, Samsung unveiled this new build on October 20th at the global Unpacked Part 2 launch event. A majority of the Samsung smartphones are running the One UI 3.1 build, and a majority of them are slated to get the new One UI 4 in the coming months. The One UI 4 build is based on Android 12, and the first beta was released on September 13th. Now, One UI 4.1 devices will be upgraded to One UI 5.0.