you are showing a difference by amplifying an image to a ridiculous point.
if you need to amplify this than there is no difference it is that simple.
there is no real difference between NGU and bicubic except the arm where NGU is doing bad looks cut out and adds ringing. but NGU chroma doubling does change the image.
if you really want a lanczos 3 AR vs bicubic 60 AR i can do that...
here you go Cr rendered as Y:
https://abload.de/img/1dup4r.png
https://abload.de/img/24arvq.png