Have you ever tried to make a jigsaw reveal in PowerPoint where the pieces appear revealing a picture or text?
It’s not easy. There are pieces in autoshapes > more autoshapes (search for puzzle) but they don’t have straight edges. You can though ungroup these and set your slide background to a picture fill and then the pieces in format Shape to Background fill.
Sort of works.
To do it properly and easily why not look at the specialist tools here:
PowerPoint Jigsaw Maker