|Time has moved on since the heady days of the original and true AmigaOS versions, and most of the things that Amiga so good have been re-implemented (albeit often in a half-assed and hacked way) in other operating systems. But, not always. Some things Amiga got right from the start were never actually copied in other systems for varying reasons.
Screen dragging is one of these. It was there since 1983 or so. Remember pulling down the title bar of a screen to see the screen behind? No other system that we know of ever did it. In fact, as graphics cards became an essential purchase for Amigas by the late 90s, screen dragging couldn't be easily replicated and mostly fell out of use. Some users really missed it.