Center stage
After I update my ipad to ipados 15 the center stage is gone, I already tried to restore the ipad and it was useless.
Question marked as
For iPadOS15, Centre Stage settings are accessed from the Control Centre whilst a supported App is running. Swipe downwards from top-right of the screen:
Be aware that Centre Stage is only supported by 2021 models of iPad Pro, the iPad9 and iPad mini6.