Would there be a difference in RU consumption when you query directly in cosmos vs. fetching the records via BE?

I have a container where there are 100s of documents (in byte size) with same partition key. When I query by a partition key, then I see higher RU consumption.

What I want to know is, Is there any difference in RU if I access the same query using SDK from my .NET application?

Sample document: Here stockNumber is partition key. I have 300 documents with same partition key in the container.

{
    "stockNumber": "123",
    "type": "note",
    "createdBy": "gp",
    "lastUserId": "User4",
    "content": "Content4",
    "contentUrl": null,
    "contentType": "text/plain",
    "createdAt": "2024-06-06T15:19:30.63186-04:00",
    "tags": [
        "important"
    ],
    "status": "active",
    "source": "manual",
    "id": "6735c189-3eff-4ec3-8c88-fea013b57340"
}

Query:

SELECT * FROM c WHERE c.stockNumber = '123'

RUs: 23.62