You linked the wikipedia page which clearly says OSes are defined by managing resources and have an always running kernel. LLMs do not meet either of these points.
> You seemed to miss the cloud computing point
You seem to misunderstand how VMs work. They are not OSes running on top of OSes, they are multiple OSes sharing the same hardware resources simultaneously side by side.
You also seem to keep avoiding the fact you wrote:
> it's the way I access my LLM. For now.
Inferring that you think soon LLMs will either not need operating systems, or will become them. This is not true at all. LLMs will never boot your hardware into a prompt. The OS will do that and hand off to the LLM. This is the main reason you are getting backlash and being downvoted.