I think there is a difference. The first "minky" I bought at Joann's seemed fine; no bleeding, soft, but did 'shed' and I had to wear my mask. But I had never used it before so thought that was what it was.
The next piece I bought at Joann's was not as soft. Acted the same, but still not as soft (it's a little stiff feeling) even after washing.
After all the bleeding I had with the flannels, the thinness of the cottons and the stiff minky, I'll stay away from Joann's fabrics; just use them for other things.