I found the above tip in a a website suggesting 10 or so things to do after installing UBUNTU. They were simple improvements that helped save hard drive space. I have a 32GB emmc for hard drive and am interested in saving as much room as possible. The suggestions were posted for UBUNTU several versions ago. I tried to find the old website but there seems to be so many nowadays that I feel I will be looking a long time.
A mild word of caution: Discriminate what you select for removal with this method. The way deborphan works, it checks only libs and libs-old to check if any currently installed packages depend on those libraries. Running this on mine, it included several Default Pacakges included with Zorin that while I currently have nothing that depends on them, I will should I try to install certain common hardware or software. For example libraries for SANE which any user will need when they try to install a Printer / Scanner as evidenced in this thread here (where the user really had no clues given to troubleshoot at first):
It also listed libraries for WNCK and qt5-style-plugins; which I would have to reinstall if I install certain gtk2 or QT apps later on down the road. It listed Libu2f-udev which I would need for certain hardware, though I do not have that hardware now.
This is a Great Tip, czubek. But just a general point; check each item for what it is needed for instead of just removing without question. (And avoid gtkorphan GUI Tool!)