Empty Follicles w/Pcos

So, pcos is a bunch of extra fluid filled follicles, right? So when we are given Letrozole/Femara or Clomid to force follicles to grow large enough to trigger, *BUT* what I'm curious about is: Could we possibly be just inducing empty follicles that will never contain an egg?

If someone is more educated on this please explain. 💜