It shouldn’t be an issue to install the screws as-is, but if you notice any resistance you have an issue. Try it and see, since they stamp the holes for those screws out with a larger hole on purpose to compensate for issues like yours.
You need to worry more about assembly damage that will cause an issue then 1mm of error. I’ve done assembly swaps with as much error as yours, and I’m fine. It may take an extra 5 minutes to do the alignment as it can throw off an assembly with hinge swap, but it doesn’t tend to matter that much in the long run 9 times out of 10, as it’s usually something you can adjust for when installing the new assembly.
With these issues, the thing that works for me is I get the panel on, secure it and check my alignment. If I’m off, I align it by the left and right corners of the laptop as that’s going to give you the best possible alignment accuracy every time. It will not be 100% correct, but it will be 95-98% there. If you want perfection, buy another used assembly or a new one that’s never been installed at a much higher price despite the fact that if you can do it, you can hide the issue to many outsiders. Perfection will NEVER happen with this kind of problem.
This assembly gave me some trouble due to a alignment issue with the hinges. Would you know it? Probably not, unless you saw me do the alignment and know the unique cosmetic problems.
This is where I focus my alignment work on when I need to adjust it a bit more than usual due to a marginal error:
I do it here because this is where it’s most visible. Get this area close, and you will hide the problem from someone who doesn’t know about it.