Hi
Hope you are well
I have seen your Question and I hope this can help you
iPhones don’t use memory cards they have flash chips that are soldered to the logicboard
I believe It would be recoverable however please do not quote me on that
You can get machines that can read the flash chips if they are removed but I wouldn’t do it if you don’t have a lot of experience as there is a lot that can go wrong
Here’s a video that shows how it works
https://youtu.be/58-7cg9cYNY
If you have any more questions please don’t hesitate to ask
Thanks???