Kit Kat: Gingerbread Cookie
I can't explain why this happens, but food and snack companies tend to release very similar seasonal flavors at the same time. Case in point, both Pepsi and Hershey have both released a gingerbread flavored product, with Gingerbread Snap'd Mountain Dew and Gingerbread Cookie Kit Kat bars. Pepsi and Hershey are two separate companies that have nothing to do with each other, and they've never released a gingerbread flavored version of one of their products that I ever remember seeing, but they've both come out with one for 2021, and they're not alone. You'll find a bunch of new gingerbread flavored products in stores this year, and I suspect that most of them won't be returning in 2022 as each of these companies follows whatever they think next year's trend will be.
Unlike the Fruity Cereal, Apple Pie and Key Lime flavored Kit Kats that came out earlier this year, these seem to be available only in Fun Size form. This is consistent with what Hershey has done with other limited edition Kit Kat bars that are associated with a holiday season, like the Witches Brew and Pumpkin Pie flavors that were in stores for Halloween. If I'm being completely honest, I enjoyed all of those other flavors more than this one. I don't think the Gingerbread Cookie ones are bad or anything, but I'd rather use gingerbread cookies as a Christmas decoration than as a flavor.