I will fully admit this is a big problem with Apple. God forbid you have two iCloud accounts and want to merge (not just the photos) My sister has two from livi

I will fully admit this is a big problem with Apple. God forbid you have two iCloud accounts and want to merge (not just the photos) My sister has two from living in another country for a decade and me, our dad, her husband, and her gave up after hours and hours and multiple trips to the Apple Store. I see there are some software out there but it shouldn’t require it to merge what are essentially files, and who knows if they will merge everything. I think we’d have to download individual documents, maybe in batches of 10, from what I remember.