Sure SS and whitegold are not the same, if you care about people calling you out wear a genuine. I know the difference between whitegold and SS and for me personally it is not a major factor. Sure whitegold has a slighlty different tone but it is not a real or "natural" color anyways like yellow gold. It is simply gold mixed with different alloys to make it look like whitegold, while yellowgold is mixed with alloys to make it more durable. While Rolex whitegold doesnt need to be rhodiumcoated, even that will turn yellow over time. For me SS only has advantages over the gold (no bracelet stretch, durability, price!, abilitly to polish and brush etc..)
Here a picture of a genuine 18239 bracelet that turned yellow vs a rhodium coated one to achieve the original look.
I could argue the same way that I know people who could definitely tell your daydate isnt a genuine from the gold color alone. While the twbest has a great gold color it is definitely not the same as a rolex yellowgold tone, it is much deeper. Not only because rolex has their own gold foundries but because 18k gold is a slightly different color also. No one really knows what these rep factories use for gold mixtures. And besides that even with wrapping you wont get a watch that has a thicker plating than 20 to 40 microns (probably 30) which is 0.03mm thick (1 micron = 1000th of a millimeter).
Here a genuine rolex and twbest next to each other. The difference in color is very apparent, as the rolex has a much deeper yellowgold tone.
If you want perfection you must go for a genuine daydate. There are other things one could call out as the lugs, while it is very good it is not perfect. It is the best 5-digit daydate replica ever produced though.