Minecraft 1.18.2
Chime v1.2.1

Overrides for the trident model in inventory does not apply.

How to replicate:

in overrides/item:
in gold_ingot.json and trident.json:

{
  "overrides": [
    {
      "predicate": {
        "name": "Fork"
      },
      "model": "item/fork"
    }
  ]
}

Result:

On the left: A trident.
On the right: A gold ingot.

wait, I might know what the problem is!
probably the inventory and the handheld one is 2 different model so you need to add overrides for both of them

Edit: yep, but it's get confusing because the trident.json is the one that's the 2d item, and the other two are the 3d