!Recently i updated s21fe i have gotten grey line now yesterday suddenly i seen green line.It is first time for me to see anything like thay in my phone. Fix it my phone is 3 year + 15 day , i hate samsung phones. I recommend don't buy flagship phon...

So i updated my s21 fe exnos last day .(30 oct 25)Now a fine white line visible in sceeen camera's left side , its very thin i'm very angryI bought sep 2022.what do i do??(Maybe i will never buy samsung again )I want to buy new no i"m confuse.