deborphan - apt-get autoremove
deborphan finds packages that have no packages depending on them. The default operation is to search only within the libs and oldlibs sec‐tions to hunt down unused libraries.
man apt-get autoremove
apt-get autoremove (--purge) is used to remove packages that were automatically installed to satisfy dependencies for other packages and are now no longer needed.
so what actually is the differce? (btw apt-get autoremove always lists much more packages as deborphan)