How can I disable keyboard and mouse input in game?

EAFC25 on EA APP (PC)

Currently using a PS5 controller on PC which works on every single other game I have played. The controller only works sometimes as the game seems to think I am using keyboard as my main input, even when I have disconnected the keyboard.

I need a way to completely disable keyboard and mouse input otherwise I can't really play the game, the menus are extremely buggy as it thinks I'm using two inputs at once.

Any advice would be appreciated.