If you want non-destructive editing of images, you'd use Nuke (or Natron if you want something OSS). Darktable is now also an option for many tasks since they

If you want non-destructive editing of images, you'd use Nuke (or Natron if you want something OSS). Darktable is now also an option for many tasks since they have a powerful mask manager and module duplication. Which makes the app sit somewhere in the middle between something like Lightroom and PS. While still being completely non-destructive. Photoshop non-destructive? That's a good one. PS is less destructive than Gimp. But far, far away from a non-destructive app like the ones mentioned above. Caveat: I am pro PS user. Since the time before it was called PS (Barneyscan) – aka ~25 years. And I have a BG in blockbuster VFX. An industry where image editing truly is non-destructive.