Really? That is your response? This is an high quality article from someone who spend a lot of time implementing a cool tool and also sharing the intricate inner workings of it. And your response is, "eh there are no official binaries for my platform". Give them some credit! Be a little more constructive!
Jep! Pixi works on any linux distribution. The ros packages only require glibc to be available, the rest is installed by pixi. This means you can run any ros distro on any version of ubuntu (or any other glibc based linux for that matter). Including ros1 noetic!