Xbox Elite Series 2 stick drift and dead zone issues?

i don't understand Elite Series 2 issues, it should be more durable and qualified...

I hear you and empathize with your issue. I bought an Xbox Elite Series 2, and after 2 months, I had nearly unplayable stick drift on the right stick. I did put in about 40-50 hours a week on the controller, but I had really hoped the redesign would hold
up better than the Elite Series 1. If you have a warranty, Microsoft can replace your entire controller if the time threshold is not exceeded. I had to install new sticks in my controller, which when taken apart, are metal sticks compared to plastic sticks
in the normal controller. I would search in your local area to see if there is a console/controller repair service in your city. I took mine there, and has been working like new! I even have the lowest-lower dead-zone settings on my fps games.

Best of luck,

Allen

Also be sure to check the controller's warranty

https://support.xbox.com/help/hardware-network/controller/controller-warranty

I’ve had this issue in the past and it is quite unfortunate. If you happen to have a Microsoft store near you they’ll often offer a replacement if you can provide proof of purchase with the past 90 days.

Getting your Xbox device serviced

https://beta.support.xbox.com/help/hardware-network/warranty-service/getting-your-product-serviced

After you’ve registered your device, follow these steps:

1. Sign in to the
   Device services page with your Microsoft account credentials.
2. Select the device that you want repaired.
3. Follow the onscreen steps to complete your service order request.

After Device services receives your submission, they’ll send you a service order number and an order confirmation email that includes shipping or drop-off instructions.

Send in your device as soon as possible. If you don’t ship within 30 days of your request, your service order will be canceled and the shipping label will no longer be valid. In countries or regions that offer a drop-off exchange,
you must go to the drop-off center within 7 days from the date you created the order.

If after 24 hours you haven't received a confirmation email, check your email program's junk folder or spam filter. If you don't find the email in junk or spam, contact Xbox Support.

If you receive a message that your phone number or email address is invalid, go to Change the email address or phone number for your Microsoft account to update your account contact info.