Using Photoshop's Generative Fill with no text prompt as a content-aware removal tool, rather than to generate new content. Lasso-select just outside a leftover remnant or messy patch, open Generative Fill, leave the prompt field blank, and click Generate — Photoshop erases the area and fills it contextually.
Cleaning up leftover subject edges/remnants after a background swap (see Generative Fill Background Compositing Workflow), where the result needs to blend with an AI-generated surrounding rather than the original photo.