~/.local/share/applications/СВОЯ_ПАПКА/link.desktop

ls -l ~/.local/share/desktop-directories 
итого 24
-rw-r--r-- 1 egik users 63 окт 26 00:30 wine-Programs-Blade and Soul.directory
-rw-r--r-- 1 egik users 61 янв  8 20:08 wine-Programs-Cheat Engine 6.2-Kernel stuff.directory
-rw-r--r-- 1 egik users 65 янв  8 20:08 wine-Programs-Cheat Engine 6.2.directory
-rw-r--r-- 1 egik users 79 янв  6 22:56 wine-Programs-Grand Theft Auto 4 - Final Mod.directory
-rw-r--r-- 1 egik users 57 янв  6 22:56 wine-Programs.directory
-rw-r--r-- 1 egik users 51 окт 26 00:30 wine-wine.directory

cat ~/.local/share/desktop-directories/wine-wine.directory 
[Desktop Entry]
Type=Directory
Name=Wine
Icon=wine

cat ~/.local/share/desktop-directories/wine-Programs.directory 
[Desktop Entry]
Type=Directory
Name=Programs
Icon=folder