Keyboard navigation is broken in Experimental View
Selection of folder/file using Left and Right arrow in a folder stops at the beginning and end of the current row and doesn't continue to previous/next row. You need to use Up and Down arrow to move to previous/next row which isn't the case with default view.
Once inside a sub-folder and if you press Alt+Left arrow to come back to parent folder, pressing the Left arrow selects the 'Recent Menu' in sidebar and not the folder in the display area.