Interactive examples are nice, but would have been better if there was a side by comparison or toggle for switching to previous iteration. In most of the cases improvement of each iteration is so subtle I couldn't tell a difference.
Agreed, on mobile I can hardly tell the difference after the second step, if at all.
Same for me, I don’t see a single difference between the examples. I’ll try again later on my laptop and see if it changes anything.
The first example looks beautiful to me though, I might use it in my next UI.