Unless it's friends/family calling, of which most calls are likely Facetime or Whatsapp video these days, I don't bother answering and let it go to voicemail and I'd never call back purely based on a number given in a voicemail.

Virtually all call traffic I receive that doesn't fit the above is outright scam attempts, fake IRS / CRA threats, bizarre calls in Mandarin or Cantonese or post-sales "check-ins" to see if I want to spend more money with a service I've already paid for.

So it's unlikely I'd personally fall for this, simply due to a lack of opportunity for the would-be scammers.

That said, with the level of sophistication they're employing I could very easily see how people get trapped by it.