I'm trying to get column A by order of 'desc' based off whether column B is empty. I would like all of column A cells that have empty column B cells to be at the bottom. If possible without any helper cells Sample image
Please see Sample sheet Sample Sheet
You can try with sorting instead of QUERY:
=SORT(A2:A,B2:B<>"",0)
And insert it into QUERY or TOCOL to get rid of the blank values:
=QUERY(SORT(A2:A,B2:B<>"",0),"WHERE Col1 is not null",)
=TOCOL(SORT(A2:A,B2:B<>"",0),1)