Like many tabletop RPGs, several key terms in Pathfinder 2e often appear enough in campaigns that both players and GMs will want to familiarize themselves with them sooner than later. With players recently experimenting with different tabletop games in the wake of the Dungeons and Dragons' OGL crisis, many curious players have found their way into the camp of Pathfinder. To assist with the recent influx of interest, many online Pathfinder source guides, both official and unofficial, have been created to help ease newcomers into this new experience.

https://screenrant.com/pathfinder-2e-terms-different-dnd/