There’s two or three gartner approved ways of doing things for fortune 500 ctos, and f500 wannabes.

It’s not a monopoly but it’s close.

It’s hard to think of anything less monopolized than cloud hosting. There are hundreds of providers.

Yeah right, and how many of them have any substantial customer base compared to AWS and Azure?

For any business that matters, your choices are amazon, google, Microsoft, and that's about it.

I couldn't even name another provider except maybe Hetzner

The three you mentioned have over 60% market share which is why this article exists at all. Knowing what I know about cloud ifnra, anyone who is actually anyone is hosting on the big three. So it's not just a market share, it's market share + impact / importance.

You could also argue that YT is on GCP (to some level) and that would probably bump that number up much higher.

The vast majority of people hosting things on the internet are on these providers. But you get downvoted for pointing that out now.