I use it any time I might get stickiness ony iron or board. Stuff will not stick on it, so you could even do something like put a strip of stitch witchery or the like and a piece of fabric on top, iron and peel.
And for baking, nothing is better except silpat sheets, which are phenomenal in all ways, including the amount they cost. Ie, a lot, lol. I work at a restaurant famous for their garlic cheese biscuits, and we use parchment paper on the baking sheets. The biscuits just pop right off. Every so often there will be a bad batch of paper, and every bottom will tear off when we lift them. Sad times, those. If you hold the paper with the other hand it helps, but fun fact- did you know that almost everything in a restaurant is set up so you only have to use one hand? It is.