Nvidia literally markets H100 as a "GPU" (https://www.nvidia.com/en-us/data-center/h100/) even though it wasn't built for graphics and I doubt there's a single person or company using one to render any kind of graphics. GPU is just a recognizable term for the product category, and will keep being used.
I assume someone is doing rendering on them given the OpenGL support. In theory, you could do rendering in CUDA, although it would be missing access to some of the hardware that those who work with graphics APIs claim is needed for performance purposes.