Yes, the ops side of things primarily sets up the Vagrantfile. Developers just know the Vagrant workflow (up, destroy, ssh). Usually developers know "just enough Linux" to `vagrant ssh` and do useful things, but definitely not enough Linux to run it as a primary dev platform.

And it is growing more and more common that most developers in larger organizations don't even know Vagrant is being used under the covers because it is being masked by higher level scripts ("click button to start dev environment"). Under NDA I can't say any names here, but it is more common than you think.