The second edition of Pathfinder effectively re-imagines classes that have been a staple in tabletop RPGs for years. Every character in Pathfinder has a single class that lasts from level one to 20, and all customization comes from the variety of backgrounds and feats they can choose. This makes each class feel unique, providing a solid canvas for character development.
Source:https://www.cbr.com/pathfinder-2e-classes/