Welcome to Inkscape Community forum!
Yes, people use Inkscape for CNC router projects.
I understand the concept, where Inkscape provides the path, which the machine routes (cuts) along. But I don't know much about the logistics, with g code and all. In the
Extensions Repository, I found....apparently there are 2 different extensions for this.... Or maybe there are 2 entries for the same extension? I didn't investigate closely, but here are the links:
I hope those will be helpful