Many games on PC require typing, and the Steam virtual keyboard allows for typing without requiring a physical keyboard. The problem is, many games are not ported to PC with gamepad typing in mind. This means that interacting with the virtual keyboard will cause the game to receive inputs, many times leaving the input box if there's any. Even emulators, such as shadPS4 have this problem.

Intercepting gamepad inputs and locking them to the keyboard only when the keyboard is on-screen would solve this issue. Steaminput would send the commands to the virtual keyboard but not the game. It could be a togglable option for games with this problem.