The next Android version has been spotted on Pixel 4

Internet search giant Google’s next operating system — likely to be called Android 11 as the company officially dropped alphabet and sweet name last year — has been spotted. This is one of the early appearances of the next OS updated that is expected to be first announced in May at Google I/O.
The next operating system of Google has been seen on a GeekBench listing for Google Pixel 4 smartphone. In the listing, the operating system is mentioned as Android R. To recall, before Google officially dropped alphabet moniker for its OS levels, the Android 10 was being referred to as Android Q. Therefore, it is possible that the device is being internally tested at the next operating system level.
Since this was spotted, it being speculates that the Developer Preview of the Android R operating system is being rolled out soon.