Samsung in their ultimate wisdom have decided to stop letting users Store pictures from their gallery into Samsung Cloud and have instead decided to eventually go with Google Drive.
Personally I've used Google Drive and I'm not taken with it.
The storage preference seems disjointed in my opinion, and I didn't like the way I was getting a ' preparing ' notification in my top status bar rather regularly, which makes me think it's not as integrated well as Samsung Cloud was.
You also need to be careful how you activate Google Drive so that Camera Uploads works correctly.
So for now I've deactivated Google Drive and I automatically update my created photo's to Dropbox. That works seamlessly for me.
With Google Drive you get 100gb
Current Phone ~
Samsung Note 20 Ultra 5G SM-N9860_256Gb SnapDragon 865+
Samsung One Ui 3.1/ Android 11.