Let us create and share gamepad/keyboard/wheel/etc configurations/layouts for each game. Let the community vote on best configs and let users browse and load these configs.
Steam has added this feature with lots of success.
Also, current gamepad control customization options are very bad and limited. We don't have access to acceleration curves etc. If you don't know what that means, just know that we need more options to customize controls for different situations, or go check out how steam handles this.
thanks for sharing your suggestion! Please use the feedback feature of the mobile STadia app to tell the team directly from your idea! 🙂