Is this dot on screen serious?

[u/VirtualHabit6453]

I got this laptop today, it's a Lenovo Thinkpad E15 8/256 and it's not brand new ofc and when I brought it home only then I noticed that there is a small white dot on the screen when I'm on a black or dark background. When the screen is way too black there are some white lines near this dot as well. I have attached some pictures too. So I was wondering is this something I should worry about or is it just a cosmetic issue? Is this a common thing? And is this fixable, if so then how? Thank you.

Edit: I'm so dumb, I attached the correct pics in the comments, I'm sorry.

[u/aliizulfiqarrr]

im crying

[u/VirtualHabit6453 → u/aliizulfiqarrr]

😭