Hi @mango3392
To get the properties of type argument for the for each activity. Downgrade the version of UiPath.System.activities package. Then you can see the type argument properties in for each activity.
But the new for each also works good, When you pass the collection variable in the condition field it will automatically changes its type argument automatically. If the condition is array variable it will automatically changes it type argument to array in the background and it works fine.
Hope it helps!!