Hello Sloth!
Thanks for providing your crash info. It looks like your GPU is trying to page memory when you crashed - are there other applications running while you are trying to play Overwatch that might be using GPU resources?
A couple ideas to try… if you are trying to run full screen, perhaps try a lower resolution (not render scale, actual resolution) to save on GPU memory. If your graphics settings didn’t choose low texture quality already, give that a try. Finally, I see you are running some overlays (Discord for example), you might try disabling those to give you back some GPU memory.
Hope that helps!
Thanks,
Bruce