...*on macOS only and runs qemu as the emulator.

We know. But of course the hype of "microVMs" is just a rebranding of existing technologies with some modifications, macOS needed extra virtualization technologies just for containers for years:

   Docker Desktop macOS (until 2025): QEMU + Virtualization.framework + Linux kernel (without extra drivers) = "microVM".

Now they use the native Apple virtualization libraries instead of QEMU for both containers and microVMs. [0] Linux never needed to use KVM for containers, but requires it for microVMs:

   Linux: KVM + Linux kernel (without extra drivers) = Firecracker "microVM".

In reality, it is different depending on the OS that you are using.

[0] https://www.docker.com/blog/docker-desktop-for-mac-qemu-virt...