That's why all retina displays run in scaled mode. In the case of XDR(assuming the optimal @2x), the usable screen space is equivalent to 3008x1692. Yes I am aware you can still view a 4k frame at 1:1 mapping within that space, but your image is still completely wrong, and doesn't even include a second 4k screen. Not to worry, I fixed it up for you.
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The products you've suggested run at 163 ppi and 138 ppi. That's too high to run them at 100%. Your chart is wrong.