Is this ps5 dead?

How long has this been happening?

This could be an overheating issue, particularly with the video portions of the system. These are a bit different than PCs. They are not really user serviceable.
 
How long has this been happening?

This could be an overheating issue, particularly with the video portions of the system. These are a bit different than PCs. They are not really user serviceable.
From the moment I put my hands on it
I didn't make a big fuzz about it
But when I tried to play my games
The condition got even worse..
The only game that is playable right now is PES 2021
 
Have you tried a different video cable and display, just to isolate the issue?

I assume you purchased second hand then. Is that correct?
Yea.
I have 2 pc monitor and one 4K tv
And three cables that were already connected to other two ps5 (bro's ps5).
All the same.....
 
Seems the PS5 is the issue then. Aside from opening up and "re-pasting" it, along with cleaning out gunk, I don't think you can do much else to improve this situation.

When you bought it, were you aware of its performance?