Yes. The word is originally used for pants made with indigo denim/dungaree, but has gained association with a particular pattern of trousers with pockets and belt-loops. However, actual denim jeans have also exploded into a million different styles, even forgoing every other aspect of being jeans except that the still use a cotton-twill as their foundation. (Torn jeans, cut-offs, skorts, skirts, shirts, jackets...)

The real issue is that we seem to not have a word (or I'm drawing a blank) that describes the cut/function.

Similarly to jeans, sweatpants are both the fabric and the style (loose, pockets optional, drawstring or elastic waist) and the material (what is formally called french terry).

Chinos are also the style and material.

Slacks is a descriptor of  primarily the cut — specifically roominess.  But is for whatever reason not used for jeans. It also doesn't cover the in/exclusion of pockets, fastener, belt-loops etc. So it's such a broad term as to be almost undescriptive.

Dress pants, is a description of the article, but is more about purpose than specific cut or material.

Pants and trousers are just synonyms (regional) for leggings (also used as both a general term for clothes that separate and cover the legs, and tights).

How does anyone in fashion ever understand what anyone else is talking about? 😅