Green line at top right corner

My iphone X bought in Feb2019 (its just 1.5 years, so don't have warrantee as well) has wired Green line on my top right corner of the screen. On searching more about it, it's called as the green line of death, for some reason. And the only way one can fix is to replace it.

This is very upsetting, as even after paying so much, we will expect that we need not to worry about any issue and every day it has either performance issue or battery issue and now it has this wired green light issue. Day by day, I have started to loose faith in apple products.