Firecracker and Kata containers are ways to run containers inside lightweight VMs that boot directly into the Kernel, they are not Linux distros in themselves.

Firecracker and Kata containers are ways to run containers inside lightweight VMs that boot directly into the Kernel, they are not Linux distros in themselves. You are trying to compare apples to oranges. You could run Firecracker or Kata containers on top of something like Bottlerocket, however Bottlerocket is geared more towards the container-sandbox and isolation crowd while Kata/Firecracker is for those who think you can only get isolation using VMs.