For transparency, it was my fault that Apple rejected our app!
A third party library added an entitlement (background audio) that they couldn't find a reason for, which we removed, and we needed a EULA that users need to review before signing in (https://pixelfed.org/app/legal)
The two other things were proving that we have a proper Block feature, and that we also have a Report feature.
I'm confident they will approve our app now!
@dansup thanks for the hard work! 🤗