How common are stuck pixels as time goes on

i got 15" mbp refurb month back. noticed today have black stuck pixel luckily on right edge, right next bezel. in fact there no screen past it.

think of noticed in first few days if there. no concern because of it's placement. curious of how common these pixels stick or die time goes on screen?

 

not sure how free app called pixelcheck lets check pixels @ red green blue white , black individually check dead pixels

 

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