News on December 5th, a few days ago, Apple added a global repair service plan for iPhone 11 in its official website announcement.
Apple said that some devices manufactured between November 2019 and May 2020 will stop responding to touch issues. If the user's device meets the conditions, Apple can repair it for free (replace the screen).
Use the serial number check tool on the support page of Apple's official website to confirm whether the device meets the conditions of the replacement plan.
It is worth noting that if the user's iPhone11 was affected by this issue and has paid for the repair of the display, you can contact Apple for a refund.