Hm, kind of a strange question then, no? Is a car's engine connected to the fuel tank, the wheels or the accelerator pedal?

I don't know, maybe it is? My point is just that frontier models start off with latent models of all the interconnectivity in all the important open-source codebases, to a degree that would be infeasible for the people who learned how all the CSS object lifecycles and image rendering and unicode shaping stuff worked well enough to use them in exploits.