I am having this problem already a few months now and I wonder why there isn't any solution for it because it belongs to the basics of photos. I am talking about photo albums. And by a photo album I don't mean my whole photo library, I mean albums which I create on my iPhone with titles like New York, Los Angeles or Europe Trip which contain only selected photos I took. That's a photo album. So, I can have many photo albums within my photo library.
Apple simply doesn't support to sync those photo albums. I do have an Apple MacBook Pro and sync my photos between the iPhone and the MacBook with the Photos app provided by Apple. However, whenever I do this, I just have all the photos on my MacBook but not the albums. That is so annyoing because it just doesn't make sense to me... Also, I want to have this working in both directions.
Do you guys know if this is possible and if yes, how?