[_jal]

I wouldn't say "intrinsically better". I have no idea what the One True Distribution Format looks like. I'd say at this point OS-level packaging provides more options and integrates better with the wider software ecosystem.

But let me ask you this: how often do you see:

FROM ubuntu:latest

RUN apt-get -y update && apt-get -y install ...

or the moral equivalent from a different distro?

And do you ever consider the idea of your stuff being incorporated into some other container?