Can I filter on linked items when retrieving headless content via the GraphQL API endpoint?

In my react native application im using the graphQL endpoint to retrieve the data.

I am trying to get my 'related' insights based on a linked categories field

Like this :

  CollectionName(languageName: "nl", useLanguageFallbacks: true) {
    items {
      insights(where: { categories: { some: { categoryKey: { in: ["Data"] }}}})  {
        items  {
            teaserImage {
            path
            }
          articleTitle
          articleDescription
          introTitle 
          introText
          articleBody
          articleConclusion
          categories {
            items {
              categoryKey
              categoryValue
            }
          }
          publishDate
          
        }
      }
    }
  }
}```

I got the follwoing error 
`The specified input object field 'categories' does not exist.`

**It seems like I am not able to acces 'linked' fields. **

I alrady tried this, like the docs are also mentioning: 

{ CollectionName(languageName: "nl", useLanguageFallbacks: true) { items { insights { items { teaserImage articleTitle articleDescription introTitle introText articleBody articleConclusion categories (where: { categoryKey: { in: ["Data"] }}) { items { categoryKey categoryValue } } publishDate

        }
      }
    }
  }
}

Then I retrieve all the insights and it just filters the categories inside it. 

Thanks in advance! 

---

**Environment**
- Xperience by Kentico version: [28.4.1]
- .NET version: [8]
- Deployment environment: [Local|Azure]
- Link to relevant [Xperience by Kentico documentation](https://docs.kentico.com/developers-and-admins/development/content-retrieval/retrieve-headless-content#basic-querying)