There is truth to this and it has certainly been true of women’s sizing for many years where everyone wants to be a size 2 (or whatever your number is) but no size 2 is the same across brands.
It’s an entirely different problem when I buy two pairs of presumably the same pair of jeans in the same style and size yet one can barely be buttoned up and the other requires a belt at all times.
And then there is the adventure of asymmetric cuts. Quality control has been outsourced to the customer. The return rates have increased a lot, some of it going straight into the bin.
It’s an entirely different problem when I buy two pairs of presumably the same pair of jeans in the same style and size yet one can barely be buttoned up and the other requires a belt at all times.