widgetBoxCollection.InsertOne(new WidgetBox([new Widget("A"), new Widget("B"), new Widget("C")]));

var lastTwoWidgets = await widgetBoxCollection.AsQueryable()
.Where(_ => true)
.SelectMany(j => j.Widgets.Take(-2))
.ToListAsync();

var lastTwoWidgets2 = (await widgetBoxCollection.AsQueryable()
.Where(_ => true)
.Select(j => j.Widgets.Take(-2))
.ToListAsync()).Single();

Console.WriteLine($"Widgets result 1: [{string.Join(",", lastTwoWidgets.Select(w => w.Name))}]");
Console.WriteLine($"Widgets result 2: [{string.Join(",", lastTwoWidgets2.Select(w => w.Name))}]");

Widgets result 1: [B,C]
Widgets result 2: [B,C]

Widgets result 1: []
Widgets result 2: []