This doesn't seem possible, but it's probable enough that I have thought about it way too long and I will probably have a dream about it in the near future.
There has been recognition of a particularly useful application of Möbius strips for a long time: belts in machinery wear out slower if they're Möbius strips, because that way the contact with the shafts is split between both sides of the belt. The oldest example of this usage I know of is from a 13th century engineer in the region of modern-day Iraq and Syria
I'm guessing a humorous exaggeration? I've accidentally cut bread off a loaf into weirdly thin/wedge slices but bagels I tend to nail pretty consistently.
Do y'all really have trouble cutting bagels, or is this one of those things everyone just sort of claims as a running gag or, like, memetic knowledge? Sometimes one side is a little thicker than the other, but mostly I have no trouble cutting bagels. Could be because I grew up eating a lot of bagels, and learned young?