I have zero photos on my device but still my iphone storage shows 8gb data

I just bought samsung T7 ssd and hence I cancelled my icloud subscription, deleted all data from my icloud and transferred them to my ssd. I deleted all photos from my icloud photos, so have 0 photos and I have turned off device backup as well so that I don't use anymore icloud storage for that.

I just have my icloud sync turned on because I have a mac as well and whenever I click photos on my iphone, I can get them on mac, export them to my ssd and then delete them from mac which deletes them from my iphone as well.

So point is that I only have my icloud sync on and currently have 0 photos on my device. Still my iphone storage claims that I have 8.56gb of documents and data in my icloud photos.

[Edited by Moderator]