I'm just surprised that Apple doesn't include this simple correction as part of the image processing for JPEG, HEIF, and RAW formats shot on the iPhone and iPad. I think it's especially necessary for the ultra wide lens.
In their WWDC 2020 presentation, Apple announced a new option in Settings lets you capture mirrored selfies, which reflect the front camera preview. This tells me that Apple is giving attention to an otherwise overlooked shortcoming. I hope Apple gives lens corrections the same attention. While it's something that, if remedied, consumers in general won't notice, it will make for more true-to-life images, just like mirrored photos.