In Google Drive, is there a way to list only those files which have been Shared with Me, but which I have not Moved to My Drive ? I would like to be able to easily distinguish those files so that I can file them into My Drive.
appears to do this. Here,
is:unorganized find the files that do not have a parent folder, and
-owner:me excludes those you own.
The only way I found is to enter the "Shared with me" folder and change the view mode to "List view".
Then, in the very right column you have the name of the My Drive folder or just empty space if it is not present in My Drive. I didn't find a way how to really filter them, so this does not answer your question precisely.
One note more: Sometimes, I had to refresh the whole page to reflect the changes. Maybe a bug.
I think what you want is the "folder" shown in red in the image (in my case, empty).