Open Steam > Settings > Controller > General Controller Settings. Uncheck "Generic Gamepad Configuration Support". Then add the Quantum as a "Nintendo Switch Pro Controller" (Steam's generic driver often misreads Chinese HID chips). Restart Steam.
USB gamepad is a budget-friendly controller primarily designed for legacy Windows systems (XP to Windows 8). While Windows 10 and 11 often detect USB gamepads automatically as "Generic USB Joysticks," a specific driver is required to enable its and advanced configuration features. Driver and Repack Information quantum qhm74872vc usb gamepad driver repack