The line on my screen will not be solved by a new software update. That I'm sure. Also most of the white line issue reported here and on reddit during the past 3 days looks similar to the white line I'm having. Some are at the exact same spot.
You are not alone. Same situation here. S21 fe. Was running smoothly till the recent update. I waited for a week to install the update since there were so many white/green line issue reported since march or april. Samsung offering a free replacement ...
