They could have perhaps done better to differentiate All The Things, but libwayland is just a C implementation of speaking the Wayland protocol...? AFAIUI, e.g

They could have perhaps done better to differentiate All The Things, but libwayland is just a C implementation of speaking the Wayland protocol...? AFAIUI, e.g. KDE doesn't actually use any of that. (I could be wrong, I honestly don't care that much about the minutiae.)