They link to a doc that has a glossary[1] but you're not wrong, it would be helpful.

1: https://gitlab.freedesktop.org/mesa/mesa/-/blob/main/src/amd...

Even knowing what they all are it’s annoying to read compared to having them spelled out. I’m constantly pausing to translate. If you’re talking to someone IRL you just say “hardware vertex shader,” not “HW VS”.