Im wondering if casey, when he implements OpenGL core (3.3 and greater) stores vertex information in the "memory_arena" which he starts to use in some earlier videos.
Or does he stop using the memory_arena at some point and when does he do it?
which videos would contain some thoughts on how to manage the GPU memory?
You can take a look at Episode 88: Push Buffer Rendering and 89: Renderer Push Buffer Entry Types to understand his rationale behind the Handmade Hero renderer.