When I used Ubuntu recently via VirtualBox an Ubuntu update would keep making the system larger. Finally an update would fail since the VM image size would be exceeded. Attempts to prune temp folders did not help or where excruciatingly geeky.
I noticed that the update would be installing things I never used or thought were part of Ubuntu. I don’t use it much, so have not not delved into the intricacies, i.e., end user. So, my question, is Update really an update?
In Cygwin, for example, when you do an update, you can pick a view, New, Updates, etc. I did not find this capability in the GUI update app. It must be there, it’s supposed to be so much better than Windoze. 
I searched the web for an answer, btw. Look, end-users don’t want to do apt-get and other geek fantasmisms, besides, a lot of the pages I found confuse update of apps with update of the system.
When time allows will give more info as to what I used and some of the things that were being updated.
