This shortcut allows you to know the latest beta of iOS, watchOS, tvOS & HomepodOS with a single click or by asking Siri. 

Please note that the shortcut is not made by me, but by Guilherme Rambo. My goal is not to steal his work, but just to finish it, because in its version, the shortcut gives you information only for iOS & watchOS. Get the original shortcut and follow his Twitter to support his good work