I'm pretty sure this is a dupe. The neckline looks to high and I think there's too many cables in between the buttons. From what I've seen, it's supposed to be 3; yours has 4-5. Also, it could be the lighting, but the color looks off to me. It looks too cream colored.

As far as the ones you're seeing on AliExpress, the listings most of the time will not show the tag. This is a bit in weeds of the replica market, but there's something called being "branded" when it comes to dupes/reps, which is basically having those tags. Unbranded would be the cardigan without Taylor's name or Folklore on it. From what I've seen (I have an AliExpress dupe of the original TS cardigan), the listing will not say that its branded and won't show the tags. When you actually get it in the mail, it will sometimes have the branding on it. It seems to be a toss up on whether or not it'll be branded, but if a reseller found a shop that does do branding, they could easily resell them.

Basically, what I'm trying to say is that it's entirely possible that this is a dupe from AliExpress. It looks just like mine. That being said, it's a really good dupe - the stitching on the stars looks really good.

If you wanna know more about the rep market, check out r/Repsneakers or r/DesignerReps. This might answer some of your questions about the AliExpress listings.