Green Line on the screen

[Izran]

last week i noticed that a green line appears on the screen of my Samsung Galaxy Z-Flip 3. I have tried everything to get rid of it but not successful. The same thing happened to my S22 Ultra. This happened after i updated both phones with the latest UI 5.1.1 

Please help me how to fix this!

And i am yet to receive UI 6.0 update for Samsung Galaxy Z-Flip 3

Thanks

[Izran]

Guess that is how we consumers can do and protect ourselves for such abuse, right. Hope the government look into this