Trying to get to the network devies page is equally infuriating- it's under network adapters and options in Control Panel, and may or may not actually be accessible from the new Settings app- I don't remember.
Even better, try setting the dead zones on an XInput game pad. Off the top of my head, it goes something like:
“Settings” > “Bluetooth and other devices” > “Printers and other devices“ > Right click your game pad > “Gamepad Settings” > select your gamepad > “Ok” > “Deadzones”