Same issue with my s23 plus green vertical line appeared just after the update to One UI 7, Samsung doesnot care, they are cheats.

After update to One UI 7, same thing happened to my s23 plus, with a bonus of one green vertical line on my display, Samsung help not resolving the issue, rather asking to change display.But I will change the brand itself for good.

Same here with vertical green line.Samsung should resolve the issue,it's their so called flagship phone.