i believe you need distance. but you'll loose resolution. the lens distortion will be way less fish-eye'e if you take the picture from meters away instead of centimeters.
photo software like darktable also has lens correction for lots of camera-lenses. but not for smartphone lenses i believe. 🤔 not sure though.
That's also weird to me. As soon as i have enough money to feel kinda secure for the next few months, making more money is not a huge priority anymore. Other interests then become way more important.
This too is not optimal, i know. But it always has been like this for me.
I wonder why i'm missing the greed gene 🤔