

Because the Linux Foundation says so. I would guess it’s because most of the relevant tech started as cloud products or services and got generalised, such as Kubernetes (the big one in CNCF).
The naming wasn’t up to Bazzite or uBlue to decide, that’s for sure, and the term “cloud native” has won the mindshare of developers.
The irony hits hard when you’re logging into an on-prem Kubernetes cluster in your company’s wholly owned data centre. At that point, “cloud” isn’t even someone else’s computer (as the FSF would say).
That’s becoming less true. The cost of inference has been rising with bigger models, and even more so with “reasoning models”.
Regardless, at the scale of 100M users, big one-off costs start looking small.