Window not resizeable without reason

[Stefan Wagner]

When I start the update manager (Xubuntu 16.04.3 LTS), it opens with a list of packages to update.

Only about 10 or 20 of them are visible. The List is scrollable, but not resizeable.

AFAIK, GUI-Programs can ask the Desktop, how large it is, and should automatically calculate the optimal size. Hey, it's even possible with Java/Swing!

They should

 - either open in the maximum size, needed to display all information without scrolling, or maximum available size, if the list exceeds the screen height
 - or remember the last state, so that we don't have to resize it everytime
 - manual resizing should only be prohibited in very, very rare cases.

Rationale: If I open a program, then because I want a job to get done. And I want it to be done fast. I want to see the interesting information at a glance, if possible. Take the whole screen, if needed - that's why I spend so much money for it! Don't kill my performance.

It's a prevalent misbehaviour of many programs, not just the update manager, to restrict us in such a kindergarten, where people never have more than 2-3 files and sweet-tiny-screenshotfriendly windows. Make it a policy to either store and restore the last size used, or to automatically optimize for maximum information, but to never, never, never ever prohibit manual resizing, except a big comite, meeting only once in 5 years, approved the absolute necessity to do so, in a bureaucratic hurdle race.

It speeds up the work and prevents frustration. Thank you very much.