This is simply false. The following things have occurred under Cooks tenure:

  - Apple Watch
  - AirPods
  - Apple Pencil
  - Apple Music
  - HomePod
  - ARKit

Each of those represent entirely new product categories, have captured the majority of a pre-existing market, or have opened up entirely new use cases for previously existing products.

Apple has significant challenges in front of them, as evidenced by this week, and Cook shoulders the responsibility for that. But, he is not Ballmer, and Apple had major security bugs and issues under Steve.

I hope the "Cook is Ballmer" trope will quickly die.