I have no idea how the generative fill function works, I don't understand this tool

[ANNA27099545vj8f]

I have no idea how the generative fill function works, I don't understand this tool, I wanted to paint the sides of the plate to make it fully visible and I didn't get any results, I don't know how it works

[Monika Gause]

Does this help: https://helpx.adobe.com/firefly/using/add-objects-in-an-image.html#:~:text=Go%20to%20the%20Generativ....