That’s a good question. To be completely honest, I don’t know much about Advanced Data Protection myself, and I didn’t do anything specific in the app to detect or interact with it.
I’m actually curious: how did you discover that it doesn’t work when Advanced Data Protection is enabled? Was it through an error message, incomplete backups, or something else you noticed?
The app that the person you're replying to ('gerdemb) created (Photos Backup Anywhere) is different than the open-source CLI tool that is the HN submission (icloud_photos_downloader).
I’m actually curious: how did you discover that it doesn’t work when Advanced Data Protection is enabled? Was it through an error message, incomplete backups, or something else you noticed?