Mentioned this a few times,will also put a review of Cloud Services here https://hostingdata.co.uk/best-cloud-storage/ personally I have used One Drive,Google Drive, Dropbox and Amazon photos. A bit about the Amazon options here Amazon Photos
I do not work for Samsung or make Samsung Products but provide independent advice and valuable contributions.
My Device- S21 Ultra 5G ( SM-998B/DS ) CSC= BTU , 12GB/256GB
One Ui 5.0,Android 13 .
Dropbox is my preference to back up photo's.
Better being safe than sorry.
Daily Driver > Samsung Galaxy s²² Ultra 256Gb in Phantom Black.
The advice I offer is my own and does not represent Samsung’s position.
I'm here to help.