I agree that stability is important, perhaps paramount, in a computing system. Still, some software like Cura, improve with every release, and it is worth upgrading for every new feature.
Anyways, I have never been concerned with space. On the whole programs don’t take up that much space compared to everything else I would put on my system like games. Also, I am the kind of person who wants all the software they would ever use installed on their system. I want my computer to be useful even when the internet goes out.