9to5Mac journalists found in the beta code iPadOS 13.5.5 mention that Apple plans to add new keyboard shortcuts to the iPad.
Most keyboards offer a number of functions that can be used with function keys, such as screen brightness, multimedia control and more. Because branded keyboards for iPad they should be compact by definition, they lack function keys. However, Apple plans to make up for this in a future update.
According to the code found in iPadOS 13.5.5 beta, the manufacturer is working on new keyboard shortcuts that will allow you to change the brightness of the iPad screen and keyboard backlight.