GNOME 3 is a great desktop environment for everyone. For those like window snapping or tiling, probably the default behavior (side-by-side) of GNOME Shell is not satisfying. Fortunately, there are two extension to do window snapping/tiling more in GNOME. You may do tiling for more than 2 windows with them. For example, tiling 3 windows or 4 windows side by side. Here we show them with their installation links.