This is an amazing software and I'm having a blast making textures so I don't really wanna complain about this petty nuisance but maybe it's a bug:
Is the pixelize node working as intended? It ruins the result by making the borders and center half a pixel instead of whole, making the texture shift a pixel when exported, which I can't use (I need the texture to have the same border width)
I used an image to demonstrate the issue;