it’s when devs of a graphics stack just suddenly feel the need to protect your own computer from itself, so they say fuck you to any features that they deem “insecure”, including accessibility features (they will claim they fixed this, but it’s opt-in per app. old apps will just be completely unusable for some people with special needs.)
But they eliminated tearing on the desktop! woo!!!
they don’t work. Technically they do, but they are a major major pain to manage.