The FN key is nuts
The FN key is nuts
Adjust the key mapping in the game or modify the FN key settings via BIOS
The FN key shouldn't be linked to anything in the game because it's only used by the keyboard to transmit particular commands when pressed alongside another key. Unless it's a special variant requiring pressing it to trigger other actions, you just need to adjust its state during specific games where it's needed.
Review your system information and update it. Some computers use FN as the default setting. This means pressing F1 increases screen brightness, while pressing FN+F1 activates both functions according to the game's configuration. It’s a simple adjustment you can make in the BIOS.