An Operating System Is Not an App

An operating system is something that shouldn’t be treated as an ‘app’, or as something people should stop and admire for its aesthetic elegance, or a product whose updates should be marketed as if it’s the next iPhone iteration. An operating system is something that needs a separate, tailored development cycle. Something that needs time so that you can devise an evolution plan about it; so that you can keep working on its robustness by correcting bugs that have been unaddressed for years, and present features that really improve workflows and productivity while building organically on what came before. This way, user-facing UI changes will look reasonable, predictable, intuitive, easily assimilable, and not just arbitrary, cosmetic, and of questionable usefulness.

Riccardo Mori, Habits, UI changes, and OS stagnation