NO GAME at all.
The library is added to the homebrew, NOT to the game.
same for PS3 controller library, it's only added to the homebrew. You can't patch the games to allow controllers not intended for the game at development time.
it's useful if you want to launch another homebrew with the same controller support (for example Nintendont).
You use the ClassicPro controller in USBLoaderGX to launch nintendont, and when in Nintendont you continue using the same controller.
It's the only benefit from using a controller that games can't use.
Now I understand
Thanks for the help and the explanation !!