I had a question on what is the sequence of items when two lists are intersected. Since it was not apparent from the documentation and not available on forum, I reached out to support and they suggested following.
Order of resultant list after intersect with
When you use the “intersect with” operator on two lists, the resulting list will return the entries that are in both lists in the existing order of the second list. That is, the operator will search through the first list for the existence of entries in the second list. For example, if you have List 1 containing [1, 2, 3, 4] and List 2 containing [4, 2], then List 1 intersect with List 2 will yield [4, 2].
Order of resultant list after merged with
Similarly, When you merge two lists, the order of the resulting list will be items from the first list, followed by items from the second list. For example, if you have List 1 containing [1, 2, 3, 4] and List 2 containing [6, 4, 2], then List 1 merged with List 2 will yield [1, 2, 3, 4, 6].
Order of resultant list after minus list
Subtraction maintains the order of the original (first list provided) minus any elements in the argument list (second list provided).
Hope this helps.