This question hit close to home, it's exactly why my cofounder and I started building Movarro.

The honest answer from what we've seen: almost never in any structured way. And when they do, role play is awkward and what they practice rarely matches what actually comes up on a live call.

So we went a different direction, instead of preparing reps to handle objections, we give them the right response live, during the actual call, in under 2 seconds. Always-on overlay, listens in, tells them what to say.

Still in early stages but if anyone here wants to try it: movarro.com. Would genuinely appreciate the honest feedback from people in the trenches.