Resize fullscreen windows complaint

I really hate when a window is fullscreen…you press the resize button, and basically it stays the same size. This also makes it very hard to grab the resize border edges to manually resize it. I think if a screen is fullscreen then pressing the resize button should automatically resize the window down by at least 75% or maybe even just 90% of the screen size that way you can at least grab the edges to manually resize it yourself.