There are plenty of vibe-coded apps out there, I am sure. Mom and pop store fronts, "wellness trackers", todo managers - trivia of that sort.

LLMs make easy problems easier, but they do not make hard problems so.

For me, AI greatly reduces the TOIL - tooling, scripts, refactoring runs, and that's great. It does not, however, excuse you from knowing how to build solid, maintainable software past your little vibe sandbox.