At a high level, the only obvious difference between NTFS Junction Points and Symbolic Links is that Junctions are only able to be directories, while SymLinks are allowed to
If anyone is interested in the difference in behavior in Windows File Explorer in Windows 10:
drag & drop to target directory:
symbolic link: moves the symbolic link to the target directoryjunction: moves the original directory to the target directoryright mouse click + properties:
symbolic link: shows you shortcut propertiesjunction: shows you original directory folder propertiesleft moue click in the left pane (directory tree):
symbolic link: selects the original directoryjunction: selects the junction