Starting with OBS Studio 32.0.0 a new renderer backend based on Apple's Metal graphics API is available for users to test as an experimental alternative to the existing OpenGL backend on macOS. This marks an important step in OBS Studio's development to adapt one of the modern APIs that deliberately broke with the past to unlock better performance and efficiency gains for end users, but also require fundamental changes to how an application interacts with a GPU. These fundamental changes were necessary to achieve the goals of lower overhead, faster performance, and to better represent the way that modern GPUs actually work, particularly when the GPU is used for more than just 3D rendering. Yet other changes were also necessary due to the way Metal was specifically designed to fit into Apple's operating systems. Due to the sheer amount of information around this topic, it made sense to sp