Migrating to kDrive from Flickr, Apple and Google Photo Clouds
As I write this my consolidated photo album is being uploaded to kDrive, to serve as an offsite backup but the journey to this point took about two weeks, due in part to experimentation and learning to use various tools.
Tools I used rsync Google Takeout Flickr Export jdupe Gemini Euria Le Chat, by Mistral Work Flow The first step is to request your data from Google Photos via the Google Takeout Tool, the Flickr Export tool for flickr, and to download all your photos locally from Apple Photos before disconnecting the local library from iCloud.