@fawkesThere is just too much wasted area in android edge UI (marked in screenshot) it would have been much better if the above and lower (marked as wasted) were in the same place, either at top or at bottom . They are at top and bottom both and wastes useful area.
While things like 1 & 2 (marked in ss by yellow) could be moved inside options (marked as 3. As these 1 &2 aren't really necessary to have always on the screen, they could be placed inside option (marked as 3).
This is just a personal point of view. Others taste in UI may differ, but I strongly think, Useful area, which should be showing the web is getting wasted for no special use.