Apple's has done the same thing regarding QA. Lots of companies have eliminated their QA departments, moved the QA engineers under development managers, and tra

Apple's has done the same thing regarding QA. Lots of companies have eliminated their QA departments, moved the QA engineers under development managers, and transitioned the QA labs to virtual machines allowing all tests to be identical and repeatable on each machine. You will never find edge cases or problems unique to certain hardware and software configurations. As an example, Big Sur bricked lots of Late-2013 MBP laptops, but Apple had no way of knowing this would happen because they never tested them.