Most sprinters do jumps of some sorts.
So yes they’re useful but probably not for the reason you think. Sprinting is very reactive, that means being able to generate force after impact very quickly. that’s what plyometrics teach teh nervous system to do. I also suspect that long-term plyometrics generate some adaptations to specific protein structures in skeletal muscle (namely titin) that contribute to long-term improvements in performance. But it’s only speculation.
Lyle