Items GetAsync with Filter on Name, expect 1 result but get 0

I've found that using filter on a folder (in this case my root / Shared Documents in SharePoint) it doesn't return the folder

var folderSearch = await serviceClient!
            .Drives[drive.Id]
            .Items
            .GetAsync(cfg => cfg.QueryParameters.Filter = "name eq 'myfolderthatexists'");

Since my folder has 200+ items in it, I used PageIterator (since I saw ONextDataLink being returned) and saw I had to page to the item before it returns?

The expectation of Filter (at least in my opinion) should return that driveitem only

I don't mind using PageIterator, as soon as I detect the Item I just return false to stop it. I'm just wondering why the filter returns empty pages until it's on the page it expects?

Start by reproducing the Drives[drive.Id].Items.GetAsync request with the name filter against a folder containing more than 200 items. Compare the filtered pages with the PageIterator behavior and determine whether the observed empty pages match the SDK or service response. Done means the filtering behavior is explained and the expected result or limitation is documented.