Your system asks for reduced motion, so VFX-JS draws nothing. Demos on this site show plain HTML.
Function
isHicCanvas
vfx-js/src/hic-canvas.ts:15 ↗import { isHicCanvas } from "@vfx-js/core";isHicCanvas(el: Element): el is HTMLCanvasElement
True if el is a canvas that captures its children with drawElementImage.