[themew]

Unfortunately, Stream is not a rolling release like Arch. You will still be required to perform a full install of Stream 9 when it's released.

[dralley]

That is a very a good thing, not a downside. CentOS Stream is still a decent choice to run a server on (yes, not quite as good as the near-perfect RHEL clone that CentOS currently is), which would definitely not be the case if it was a "true" rolling release distro.

To have an Arch-like distro under the CentOS brand would not make any sense.