Tiny white dots on iMac Screen?

[JasonMovieGuy]

This could be me overreacting, but today I noticed very very tiny white dots (looks like stars at the Planetarium) covering a lot of my 27 iMac (2017). I just bought the computer last week. I don't think it's dead pixels because when I am using the computer, I don't seem them. This is when the machine is in sleep mode. So the screen if off. Could it be air bubbles? I tried wiping them off but they're not smudges. They are clearly inside or behind the glass.

Should I take this in for repair? Or is this normal?

 

[Fishrrman]

Since it's new, I'd take it back for an exchange, IF the problem is "reproducible", show them.

Show 'em the image above, too.