Since 20+ years ago I used decent window managers that let me have a 2x2 workspace. VERY simple to use. Moving the mouse works within a workspace and the same way across workspaces (mouse off any edge). Moving windows worked within workspaces (click, drag, drop) same as across workspaces (click, drag, drop). Basically the principal of least surprise. Moving the mouse and clicking shouldn't have special rules across w…
There is a fix for this in display settings.
I have personally gotten used to the vertical alignment and new key patterns. Still using 17.10 but performance seems improved from unity and looking to maybe get back into a bit of gtk development ;)