Question Faint white line on monitor

[Batman1121]

There's a faint white line on the left side of my monitor (not backlight bleed)
Pics:
https://ibb.co/m4bvyQ3
https://ibb.co/5Y5hKwR
https://ibb.co/cxQ9T9B
It's always there after I boot up my pc but it disappears completely after 1-2 hours of use.
Pics after 2 hours:
https://ibb.co/jzLB1xy
https://ibb.co/McMVY3r
As far as I remember it just suddenly appeared a couple months back. Any idea what this is about?

 

[SteveRX4]

All those links say This Page Doesn't Exist.

PC and monitor specs?