I'd say that the true "laws of physics" are things like conservation of mass-energy, CPT/Lorentz invariance, the principle of least action, and such. There aren

I'd say that the true "laws of physics" are things like conservation of mass-energy, CPT/Lorentz invariance, the principle of least action, and such. There aren't many of them, and they are inputs that constrain the models. The Standard Model, for instance, is designed to respect Lorentz invariance, because as far as we can tell, Lorentz invariance is a True And Unchanging Forever Law Of Reality. As far as we can tell!