Windows has removed the Control Panel entry from the WinX Menu. You now see an item which opens Settings. The WinX Menu is the one which pops up when you right-click on the Start Button.

This allows you to use a custom control scheme for all games ... despite the option being labeled for DualSense controllers. In the next menu, select "Enable Custom Button Assignments" to allow ...

In previous editions of Windows, you could find the Control Panel menu easily, through the Start Menu or through the File Explorer. Windows 10, however, doesn't display it in these places anymore ...