iCloud Drive is using lots of storage space in my iPhone
I have an iPhone XR 128GB and want to free some storage space.
When I go to Settings > General > iPhone Storage, one app that is taking 25,74GB of storage space is iCloud Drive. The thing is: I don't have this space in my iCloud, I never signed up for iCloud Drive, so I don't understand why is it taking so much storage space in my iPhone.
When I go to Settings > My name > iCloud and check the storage used, it says it has 4GB being used out of 5GB of possible usage.
So why is iCloud Drive using 25,74GB of my total iPhone Storage??? How can I delete it from my phone and free some space?
Thanks.
iPhone XR, iOS 13