I don’t do much 3D printing, but for those that do, it’s sounding more and more like 3MF is supplanting STL as a preferred file type for 3D printing.
Here’s a video outlining some benefits: https://youtu.be/4KSB38FYREo
One of the big ones is that it includes scale/unit information, but I’m not sure how that works without scale choices in Nomad (which is maybe why Stephane hasn’t included it already?)