VS Code caches a lot. That's helpful but is sometimes a pain. Here is how to clear the workspace / user session session, which, among other things, remembers your recently opened files.

Bash in the Linux Subsystem for Windows

rm -rf mnt/c/Users/bigfo/AppData/Roaming/Code/User/workspaceStorage/

If that does not work, try the nuclear option, and delete everything except settings.json and keybindings.json like this:

find /mnt/c/Users/bigfo/AppData/Roaming/Code/ \
  -type f \
  -not -path "*User/*.json" \
  -exec rm {} \;

Here is the first option in PowerShell on Windows

Remove-Item -Recurse -Force ~\AppData\Roaming\Code\User\workspaceStorage