macbook pro 2020 - thin flickering vertical line keeps reappearing on screen

Hi I have a MacBook Pro 13-in that I had purchased in 2021. 10 days before the warranty got over, there was a white block on the screen. That was thankfully replaced by Apple since it was covered under the warranty.

However, while I was working today, suddenly a black vertical line appeared on the screen. After a few seconds it started flickering and has been going on ever since. Has anyone faced something similar? Or if anybody knows the possible causes or solutions for the same, it would be great!

My MacBook doesn't have any physical damage or dents, it practically sits on my work table 24*7. Neither was it dropped nor did anything fall on it.