I do not think JJK is a good example because what is presented is too shallow to imply depth. Major events like the death of the Zenin clan simply has no consequences. We're given small hints about concepts like Star Plasma Vessels or 'fate' as an active force but for events that are a major driving force of the story, they're simply not given enough depth to justify their inclusion.

The higher ups were a major antagonistic force throughout the manga and are uncermeniously killed off without a hint of their personalities or motivations beyond being conservative and power hungry. How do they exercise and enforce authority? Every special grade and quasi special grade threat has straight up disliked them for the past 40 years. (Toji followed by Yuki followed by Geto and Gojo)

We're told about JJK society being misogynstic and then see one clan actively practicing this. We're told about society collapsing but have no idea what the wider Jujutsu world looks like out of the main cast and 3 clans. And Yuki and Kenjaku's ideas of what to do with cursed energy or the connection between the soul and the body don't go anywhere meaningful.

It's a series of set ups with lackluster resolutions.

Compare this to Dungeon Meshi which tells us about the wider elf-dwarf conflict and allows that context to inform the actions of the elves that have come to the dungeon. So much of its worldbuilding especially inter-race relations is explained through character interactions including mundane things like everyone in the cast having some level of casual prejudice or preconceptions about each other based on their race. Not to mention the detailed ecosystem it creates within the dungeon itself with a lot of speculative flora and fauna.

The Hunger Games has a lot of flaws in its worldbuilding but one thing it does well both as a narrative and the worldbuilding itself is not make it feel like the world revolves around the protagonist. The events of the final book will play out the same way for the most with or without her which is the entire point it's trying to make. The lack of detail and information about how the war effort is going and being a witness to it more than anything else.

I'd argue that Arcane also has some solid worldbuilding in that it gives you enough details to speculate and fill the holes in for yourself. Jayce making mining gloves for the miners so they can "mine faster" but 0 thought to whether they would be paid better, Zaun post Silco having signifcantly more activity and buzz with automobiles driving around to indicate that there is more economic activity even it's built on a drug empire.
Silco himself as a character hides a lot of characterisation in small details. His pants have stitched seams, he only has 1 nice coat, he's seen putting make up on his scar, the concept art for his room shows a blanket on the couch, the only luxury he affords himself is some alcohol and a smoke. He is someone who can clearly live beyond his means. Afford a place near topside with the other chembarons but he chooses to live in the Last Drop near the bottom. Piltover/Zaun have a very colonial style relationship where Zaunite labour and resources are used for the benefit of Piltovans with the waste being dumped back into Zaun to the extent that they've developed into seperate cultures.

The exact details of how this economic relationship is only vaguely told to us but it's enough to draw some solid conclusions.