Hi. There is the mechanics of interaction between window and screen edges and other windows. When dragging a window it snaps/resists along its edges to others window edges and screen edges. It feels like you need to apply some "pressure" to continue moving, for example when you reaches the left or right edges of the screen. 

I would really love to disable it, but i didn't find any option to do that. I have looked in gnome-tweak-tool and dconf-editor. 

Not to be misguided, it's not the edge-tiling function.