When I upgraded from 18.10 to 19.04, and again when I upgraded from 19.04 to 19.10, I had to manually reinstall all of the packages I installed through
apt, etc. (I do not recall the precise details of how I went about either upgrade.) Is there a less painful route to upgrade Ubuntu 19.10 to 20.04?
Closely related: When I was a macOS user and upgraded my system software, I could export a list of installed Mac Ports, and then reinstall after the system upgrade using that exported list. Is there a similar kind of functionality for
apt? I would find this kind of solution to be "less painful" in case there is not a simple and direct way to accomplish an upgrade to 20.04 without losing installed packages. :)