free "unlimited" photo backup shrinkage

some free "unlimited" photo cloud backup sites shrink your photos

• ever
• flickr
• google
• icloud
• https://shoeboxapp.com/pricing (10M)
• yandex

one way to see how this affects your photos is to use a panorama shot such as

https://www.flickr.com/photos/osde-info/38535461260/in/datetaken-public/

https://www.flickr.com/photos/osde-info/39447863115/in/datetaken-public/