Personal files on a tracked (work) computer?

More of a question than a technical issues here.

Using Prey on work laptop and my understanding is that Prey allows you to recover deleted files. This is my only laptop that I use for everything and I have things like personal photos on it - which I was planning to wipe before leaving the company.

But now I’m wondering - if the laptop has Prey, does that mean they’ll be able to recover anything that I delete? How do I find out which files are / not tracked by Prey?