Deleting albums in Photos
I have 100s of albums in Photos that were created when I imported photos from various cameras over the last decade+ (iPhoto). All my photos are in synchronised to iCloud. I can't seem to get rid of the albums. Whenever I delete them, they return within a few minutes. Moving albums into a folder is also reversed within a few minutes. Probably caused by iCloud synchronisation.
What causes this behaviour and what can I do about it?
iMac 27″ 5K, macOS 11.2