I thought VLC had peaked, then I found these plugins.
The OCR Plugin for OBS provides real-time Optical Characted Recognition (OCR) or Text Recognition abilities over any OBS Source that provides an image - can be Image, Video, Browser or any other ...
Annotate your video while recording/streaming. Change brush color and size, or use the eraser to remove brush strokes. Switch to arrow mode to automatically add an arrow head to the end of your line.