And clearly, with its 15 different billion-dollar a year businesses, Microsoft is at the edge of collapse.

Microsoft ceased being a growth company in the late 1990s / early 2000s. It's now a mature to late-mature tech company.

As pg called it, Microsoft lost its dominance over the tech world by the early-mid 2000s. It was no longer mandatory to have "a Microsoft strategy" (e.g., partner, out-compete, be bought out). Today the pace is set by Google, Apple, Amazon, and Facebook. In about that order. The Economist's cover from a year or so back highlighted this.

I wouldn't consider those to be dead or dying.

Yet.