Nope, I don't think (and don't think I said) it's a VM, or that it can allow you to run any software on any hardware. I have been coding long enough to remember using VirtualBox to do Ruby work for clients :)

I may have alluded to that experience - in saying that we used to use VMs for the same use case (isolation) before mainstream containerization like Docker. But yeah I know the two are unrelated.

The idea of installing software in an isolated (emulated) environment - a snapshot of the OS ("disk image") - is not so different from the PSX emulator analogy since emulators also work that way.

Docker got popular before Kubernetes was even created. It was after the fact that it became its own thing, and tried to become just an "orchestration layer" but it means nothing without containerization.

To say you ported it to the browser with no working containers doesn't mean anything to me. What was ported?

It's like saying you ported PlayStation to Chrome but no games will play. How is it a port of anything.