The term «workspace» in #GNOME is a little misleading sometimes. It’s completely OK, and sometimes even preferrable, to use multiple workspaces for a single task. An example that comes to mind is my illustration workflow: #Inkscape mazimized in one workspace, and #Nautilus, #Epiphany, and sometimes #AppIconPreview, in another. Workflows like this one will become much more convenient with the planned window management changes. Try to see if you can do your tasks similarly!