Organize Apple Photos Albums
While you curate, Backstory also organizes your Apple Photos app.
Any album you create in Backstory is also added to Apple Photos. Then, when you add a video or photo to a Backstory album, the same video/photo is added to the album in Apple Photos.
When you're in Apple Photos, you'll see the albums created in Backstory because the word "Backstory" is added before each album name.

A screenshot of the Apple Photos App
Backstory creates mirror versions of your Backstory albums
Delete Skipped Photos on iPhone
It's easy to also delete your skipped photos from your Apple Photos app. Simply open Apple Photos, open the album "Backstory - Skipped", select all the photos, and tap the trash icon.
Note that it takes 30 days for Apple to delete photos from your phone, so if you need to immediately free up storage, navigate to "Recently Deleted" in Apple Photos, select all the photos and tap "Delete All." Once you do this, those photos are permanently deleted.

Deleting Photos from the Apple Photos App
Easily delete your Skipped Photos from your phone to free up storage
Organized with a Backup
By mirroring Backstory albums, your Apple Photos app becomes more organized, plus you have a backup of the efforts you put into curating your Backstory.