A simple Comfyui Workflow I use for basic testing and image generation. Contains the "RTX Video Super Resolution" upscaling node to upscale images and videos. Only works on Nvidia RTX GPUs. https://github.com/Comfy-Org/Nvidia_RTX_Nodes_ComfyUI.git
05/2/26 update
Also added seed vr2 version for non nvidia users. The quality is about the same though I prefer RTX solution as it is notably faster (almost instant) and I prefer the upscalling quality slightly better.
Still probably better to go with a good forge workflow :p.