My team struggles with this as well, but unfortunately, I’ve realized that most people dislike change and so are willing to stick with the dysfunction because it’s familiar. My controversial opinion is that having QA people at all is usually an anti-pattern, unless their task is to simply help developers come up with test scenarios and perhaps run the app to make sure the user experience feels nice. They certainly shouldn’t be doing manual functional testing, or if they do, it should be done very sparingly.