New menu item in Google Docs (which includes Sheets, Slides, and Drawings) allows you to see when a document was created and what folder it is in.
I find it very helpful to click on the folder icon next to the document title. This shows me what folder that document is filed in. I can move it to another folder using the blue “Move this item” button. Clicking on the folder location in the drop down window launches the folder. I find this useful because I typically want access to other documents in that same folder. This is a fast way to get to Google Drive, specifically the folder of materials you’re probably working on at that moment.
D is for Details Pane
The details pane will show you what folder that document is in. You can have a document in MULTIPLE folders. Single click on a file in Google Drive, hold down the Shift key and press Z to add the file to an additional folder.
Notice next to to the document location is an X. To remove a document from a folder, click on the X in the details pane.