In the case of Photoshop it is the software itself that is becoming useless. In a few years, using photoshop will be viewed the same as developing physical film, a process from a by-gone era that is still possible, but impractical.
One technique I’ve used for cleaning up AI-generated images, was a Python script driving ImageMagick-and an LLM helped write the Python script (although it took a few iterations, because the LLM’s first attempt didn’t actually work)