What is the difference between iCloud and iCloud Drive?

Question

Apple iCloud

Tell me what's the difference. I can not understand why I have shown that 4.9 GB is occupied by photos. But at the same time, when I open the iCloud Drive application (now Files) and the same thing on the Mac - there is only 1 photo.

Answer 1

Are you sure you are looking at CloudDrives of the same account?
As an option: if one of the values ​​is shown on the device, re-login on it in Cloud