I'd like to get excited about WebGPU as well, but I am lacking enough imagination here. Games? 3D animations? What else beyond these obvious applications?
Those who are excited about it: why? what are you planning to build with it?
A slideshow program with custom font rendering & line wrapping and nice shader based transitions between slides for instance.
Even something like a terminal/tty is much nicer when it renders at > 60fps with smooth scrolling. Very hard to do with DOM nodes.
Because of the web a generation of programmers has forgotten how fast and responsive applications can be. Webgpu can make the web feel fast again.