pinch to resize?...
Nope, and if so I won't appreciate this:o
The gray deformed bar under the window in my screenshot is the resize handle, and works like in original Note 8.0 multiwindow split mode. Windows now only resize in horizontal way...
Is TouchWiz still working 120dpi? and also all other applications?
TouchWiz dies and if you didn't have other launcher in place of it (I'm using ADW), the device won't boot after you changed the dpi setting in build.prop. I think Xposed App Set...
An uncovered wallpaper is a good one. Swapps is a much better launcher to me.
For tablet UI, I'm using 120dpi setting. (ro.sf.lcd_density=120) It makes things become much smaller than my previous gtab2 7.0 but I think I can live with it.