Classic view with classic icon arrangement is still the easiest to find things. Mostly, I guess, because the organisation of things doesn't change every other version, or goes to hide under a different vaguely named subsection every so often.
The fact that Updates are under Security, and not under Apps does say something about Windows, though...
Eh, updates and security go hand-in-hand. I'd say it would be best to completely split it out. Updates should just contain security update and be mandatory. Some other thing (call them upgrades) should contain new features and be optional.
This is, unfortunately, for a lot of OSs not true. Windows and Android for example combine security patches with normal updates which introduce new bugs.
The fact that Updates are under Security, and not under Apps does say something about Windows, though...