How does Windows 10 use smart close-to-screen edges to automatically arrange windows?

In the Windows 7 era, Microsoft added another super-humanized feature to the Windows system, which is that when you drag the current window near the edge of the screen, you can automatically maximize it (above the screen) or automatically occupy the half-screen window function (left, Right), this is very convenient for people who often want to compare two documents, no longer need to manually adjust the zoom one by one. And Windows 10 further optimizes this function! Let's take a closer look:
New skills: close to the left (right) up/down corner automatically account for 1/4 screen
Windows 10 The automatic split screen function adds another attribute, which automatically takes up 1/4 of the screen when the moving window is close to the left (right) up/down corner. This can be more fully utilized for larger display screens.

When the docking is completed, other window thumbnails will appear.
The following picture, in the 2 equal screen, when the docking is completed, other window thumbnails will appear, as long as you need to tap the screen easily. The window is fine.
Windows 10 New Skills: Smarter Arrangement of Window Functions Near the Edge of the Screen

What if the screen is too small and you don't want this feature?
1: Search directly in the lower left corner of Windows 10 Box input <;Easy Access" 
2: Click [Easy Access Settings], you have to say that the Windows 10 search function is more useful!;
3: Click [Make the mouse easier to use]; Br>4: Tick the front of [Automatically arrange windows when moving windows to the edge of the screen]. Click OK and then move the window to the edge. Does it not suddenly become bigger?