This was sent around recently, on azure specifically. https://isolveproblems.substack.com/p/how-microsoft-vaporized-a-trillion

It reads a bit like one engineer with a grudge, and you never know what the interpersonal skills of people are like; but the overall impression is of a competent engineer face with total chaos.

The bit about each azure host having a webserver shared across all client vms for info query was gobsmacking tbh. Though i dont work in this area.