I am using Orange 3.24.1.
When I connect a Moving Transform widget to a CSV File Import widget and look at the results e.g. via a Line Chart widget or via a Periodogram widget, I do not see any effect of the Moving Transform widget's operation. Regardless of which transform operation or window size I am setting, both the line charts anad periodograms of the unmodified and of the transformed data look exactly the same. It also does not matter whether I apply the Moving Transform manually or automatically.