Am I? How many serious applications have more code than the operating system, all libraries it uses, all extra tools running there to make it work/usable/maint

Am I? How many serious applications have more code than the operating system, all libraries it uses, all extra tools running there to make it work/usable/maintainable, all CPU design, and so on? Even if you just look at the Linux kernel there aren't many applications that have more code than it has. If you add all standard library and basic OS and additional tools like SSH and likes that you typically have installed then I am not even sure there exists any single application that would have more code than that.