GS3 doesn't recognize my keyboard or mouse as a keyboard and mouse

I need some help fixing the game to work with my USB devices connected to my Steam Deck.
I am using a Steam Deck and it’s dock to launch GS3.

When I open the game, the menu screen is navigated through arrows keys and the space bar, and sort of through the mouse but I can’t see the cursor. When I manage to hit play, I am met with he intro, but my mouse cannot move my point of view. Same with trying to run around, look around, etc.

The built in steam deck button layout all works perfectly fine, but I can’t seem to get it to work with any other device I try to control it with.
All other games I play (besides Don’t starve together which is known for this issue too,) don’t experience the same issues.

I have tried changing the steam controller layouts even to the keyboard and mouse one, but it still fails to cooperate.

I would greatly appreciate any feedback to help me play the game comfortably with KBM on the Steam Deck.