Re: All apps
With the classic start menu it didn't really matter if overenthusiastic installers injected extra crap, it was easy to delete them, easy to move them and a multilevel tree has vastly more space to hold them anyway. You always felt you were in control of it and you never had to search tediously through an endless flat list.
That's win8/10 for you, no control over and no help from the ui.