@muiiio @foncu The import must be of the whole ZIP export from IG.
We know the export contains a lot of data, that is why we process only the media you select and upload to the server, that way the backend only sees exactly the posts you want to import.
Feel free to audit the Import source code if it makes you feel more comfortable!
https://github.com/pixelfed/pixelfed/blob/dev/resources/assets/components/AccountImport.vue#L400