Yes, there are differences between creasing jeans and trousers. Jeans typically require washing, drying, ironing, and starching for a permanent crease, whereas dress pants may only need an ironed look.
Supercreasing is also important in uniform pants but not necessary for casual wear, such as chinos. Stitching or glue can be used to create a fold in the fabric, while pintucking reduces width by 6-8mm.