Why isn't there a way to change controller deadzone universally.

Hello O S, I am an independent advisor and I will be happy to help you today. My name is Khaji

Controller dead zone settings may vary between different games and platforms due to individual design preferences and development approaches. Although some games allow you to adjust the controller's dead zone, not all offer this option.

The controller dead zone can affect the sensitivity and response of the controls in a game. Some game developers may prefer to set a specific dead zone to ensure a balanced and consistent gaming experience for all players. Allowing universal dead zone adjustments could affect the original intent of the game design.

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Oh, I see. That's a good question .Controller deadzone is the amount your control stick can move before it's recognized in game. The best way is to adjust the deadzone in your controller.

Check on apps, accessories and devices, check for controller updates.

Does it do similar on any other games?

Could be controller drift, certain games allow you to alter change controller deadzone, the larger the deadzone the more input required for it to move in that direction.

Where can I find this windows calibration tool?
I have this problem on several games, most of them have sensitivity calibration in the settings but no deadzone and some don't even change the sentivity for example sim racing games. Because of this problem is why I'm looking for a way to calibrate sensitivity and deadzone outside games.

The OP is right that there is too much deadzone. I don't think it is that small an issue. I think it makes the controller feel way worse and less precise than the 360 controller. Maybe it's not a problem on certain games but it's poor on Advanced warfare.
It was changed for Titan fall (which now works perfectly) so obviously the devs of that game thought it was an issue just like OP.

I wish each game would allow you to set your own level of deadzone.