How to safely remove default folders? [duplicate]
Yes. See post #7 in your link.
Backup the config file (optional):
cp ~/.config/user-dirs.dirs ~/.config/user-dirs.dirs.bak
Edit the file by commenting out unnecessary entries:
vim ~/.config/user-dirs.dirs
Run update command:
xdg-user-dirs-update
DO NOT REMOVE XDG_DESKTOP_DIR