* ubuntu - Increasingly hostile to container usage (I tried to install a package recently, the install "succeeded" but at runtime the installed binary simply printed 'oh actually this is a stub, use snap instead' and exited), along with all the other downsides of debian (see below)

* debian - Very old packages if you're running a supported version. There's a ton of boilerplate to make apt behave itself in a container environment, something like "apt-get update && DEBIAN_FRONTEND=non-interactive apt-get install --assume-yes --no-install-recommends PACKAGE", compare to "apk --update add PACKAGE".

* distroless - More work to create and manage, can't install things ad-hoc in a running container for debugging purposes

As it is, I use debian and put up with the annoyances and need to occasionally install things from source to get a modern version. But there's really no good options. Alpine would be amazing, except I've hit too many problems with musl (though I'm sure it's not actually musl's fault). If someone was advertising "alpine but with glibc" and it actually WAS that (not "alpine with glibc tacked on top"), I'd use it in a heartbeat.