I used WSL Ubuntu to make a Ventoy Persistance file. I needed a folder in Ubuntu that Windows could access the file.
Here are the commands.
# Create a destination folder in your Linux home (if needed)
mkdir -p ~/windows_backup/
# Now set ownership and permissions - these WILL work
sudo chown -R $USER:$USER ~/windows_backup/
chmod -R 755 ~/windows_backup/
In Windows File Explorer
\\wsl$
Or you may have a Linux Icon in the list on the left in Explorer
Now you can copy/paste files in that Ubuntu folder.