[lakpan]

> minor inconvenience

Do you have software that automatically fixes this issue in all the pictures at once? Because as a non-professional I can only think of a very manual approach.

On my old phone, dust made its way into one of the cameras and now all of those photos are forever ruined (or until I find a way to somewhat automate this fixing)

[sudosysgen]

Any real photo editor will allow you to batch a patch heal operations. Lightroom, Photoshop, GIMP, Darktable, etc... all support this.