You definitely shouldn’t get your iPhone 8 repaired by a third-party shop

iOS 11.3 isn't even two weeks old, and it's already causing problems. Specifically, it's killing touch functionality in iPhone 8 models that have third-party screens. 
Users who have had their iPhone 8's screens replaced by shops that aren't Apple Stores or authorized retailers have been experiencing difficulty using their phones since downloading the update. Multiple retailers told Motherboard that fixing the phones requires upgrading the chip that powers the screen. 
Look, we get it.