I see Substance Designer examples in every resume . Sometimes it looks like a kind of sport achievements. But when it comes to actual work it looks like I only one who really use it for repeating textures. People use Painter for the purpose or just Photoshop with pattern preview , or Quixel Mixer. In a word anything but SD .
I see same kind of desert feel in forums about Designer , including Adobe ones and a kind of dead end sense in its development. They detour to Houdini field instead of making SD somewhat user friendly.