I'm from Brazil and I'm the CEO of UNIX Universe site:
This post specificaly talks about problems about packages missing from Ubuntu and this is about Ubuntu MATE too!
I know you guys will not read Portuguese so I brought here the problem: Ubuntu MATE 18.04 still has some annoying problems caused just by the ausence of packages that Canonical insist not brought to the system. Examples?
This packages are required to run some WiFi drivers, VirtualBox and fix a little issue at boot time on my MSI Cubi, my laptop Asus and my Macbook Air: gcc make perl libelf-dev intel-microcode
libelf-dev is one of the most important, since it is required to compile Wifi from this package: bcmwl!
If you have some MacBook, you need to use the Wifi module from /media/cdrom/pool/restricted/b/bcmwl
located at liveUSB. And the package libelf-dev is a dependence to compile it!
And this same package is required to properly compile modules for VirtualBox too.
So guys, you from the Ubuntu MATE Team, can't put these packages natively on the system? Or it is something that only concerns to Canonical? B'cuz most of the users will doesn't know how to properly install them (or will notice the ausence of them) and will have problems.