Performance-Based Testing (PBT) is being introduced to some exams. In this form of testing, you are presented with a system in a controlled browser lab-type environment and are given a set of tasks to perform.
PBT makes it even more important for you to be familiar with and comfortable using the Power Platform.
I have written more about PBT at https://community.dynamics.com/365/b/dynamicscrmukmct/posts/performance-based-testing. You can get some more information on PBT there.
Now that we have outlined the changes to role-based certification, we will now look at the roles relevant to the PL-200 exam.