QUESTION :
This has been asked regarding Windows, but not macOS.
(Yes, there’s a comment on that question regarding macOS, but it’s a comment and not an answer, so it’s likely to be overlooked, and it’s on a question about Windows, and to top it all off it’s wrong.)
So, for sake of making (the correct version of) this information easy to find:
Where does VS Code store unsaved files on macOS?
ANSWER :
It can be found in a subdirectory of
~/Library/Application Support/Code/Backups
Note that the space above has been escaped with a character, so you can copy the path and paste it onto the command line.
If you want to put it in quotation marks, then you’ll need drop character, and replace ~ with $HOME, like so:
"$HOME/Library/Application Support/Code/Backups"
On my laptop the subdirectory is named with a 13-digit number, inside of which is /untitled/. I would guess that the directory above untitled probably varies from installation to installation.