Looked through Jujutsu Kaisen chapters to check the art & it really looks like a rough draft of a manga. The lines are really chunky and imprecise and for any kind of shading he just does these two lines and a bunch of skribbles crossing between. It's like Togashi rough sketches.

Like yeah it's the series' style to be "rough & sketchy" but despite the spreads you can definitely see the lack of polish or consistency beyond stylistic "choice" unlike CSM f.ex. I see this a lot in fanartists when they do quick sketches. I'd put it on the lower end of WSJ art.

I know most people will just say "looks cool to me" but I hope you understand what I'm saying about the technical aspect of the art. The shading and definition in the panels is really skribbly & poorly defined for the most part. It definitely feels very early stage/inexperienced.

It's kinda like this

Went to the most recent chapter and even the best page is filled with poor shading and use of lines

Or look at how this guy is drawn in the last page. The dots on his hoodie even cross over his fingers, the lines on his hand/knuckles is a mess, all the lines around his hood are total doodles with no proper definition.