Steam Runtime Fun

I've had a bit of fun with the Steam Runtime, this week. I've recently bought a Framework Desktop machine, and although Eggnob's been running fine, locally, it's been hard-crashing on the Steam Deck and, I later discovered, on the Desktop. In both cases, it looks like a hard crash in the GPU, and in both cases, it's down to the setup of the post processing shaders. And yet, my laptop (also an AMD…