The link I had to the PMI Practice Exam does not work; I assume that it does not apply to the 2021 exam, and I do not know whether PMI released a new version, updated for the 2021 exam.
As for the PM PrepCast, the exam simulator has been updated to the new exam and content;
here
you can find additional information about it.
Training for Project Management Professional (PMP)®, PMI Agile Certified Practitioner (PMI-ACP)®, and Certified Associate in Project Management (CAPM)®