I wish docker and friends could integrate microvm support (and not just for AI agents), to the point where I can "docker pull ubuntu" (or whatever other distro)

I wish docker and friends could integrate microvm support (and not just for AI agents), to the point where I can "docker pull ubuntu" (or whatever other distro) to run them just as easily as we're used to. The biggest issue preventing me from using microvm more is the lack of easy access to kernel/rootfs combinations of different distros.