One problem which I have with original Edge was it had only one draggable zone, which means you can't easily hide window to the right border of the screen.
Chromium Edge inherited Chrome panel, which regressed from wide draggable zone to some thin pixel line with terrible user experience. You should slow down your mouse and aim cursor to drag this window. (Also, as for me this offset line looks ugly)
An elegant solution for this problem I saw in the Firefox with a big (maybe too big) draggable square in the left corner.
I am not sure are chromium draggable zone so irritating for me of someone else, so what you think about them?