Unable to update fields of driveitem using '.ItemWithPath(documentSetName).PatchAsync(driveItem)'

I am trying to update SharePoint's DocumentSet metadata using below code, the call returns 200OK, but nothing is updated. What is wrong with the below code?

var driveItem = new DriveItem
{
    Name = "test01",
    ListItem = new ListItem
    {
        Fields = new FieldValueSet
        {
            AdditionalData = new Dictionary<string, object>
            {
                {
                    "CompanyCode" , "test01"
                },
                {
                    "CaseStatus" , "InProgress"
                }
            }
        }                    
    }
};

GetGraphClient().Drives[driveId].Root.ItemWithPath(documentSetName).PatchAsync(driveItem);

Note:

• I have read that it is possible to do this update using lists[listID]/items[itemID], this approach requires 2 calls, first call to get the ItemId, subsequent to update - this would cause performance issues when there many documentsets to be updated.
• In Graph SDK 3.4 version it was possible to update fields using .ListItem.Fields.Request().UpdateAsync - the SDK version 5.7 does not have similar capability.

Start at the provided Drives[driveId].Root.ItemWithPath(documentSetName).PatchAsync entry point and compare it with the lists[listID]/items[itemID] approach described in the issue. Reproduce the request with the shown DriveItem payload, inspect the response and resulting fields, and determine whether SDK 5.7 supports this update path. Done means the supported update route or limitation is clearly established.