Yeah itˋs the same for me as well on iOS17.2(.1). On multiple devices as well as different iCloud accounts.
Also the iCloud backups have a glitch somewhere in iOS17/iPadOS17 as they are excessively larger than on iOS16/iPadOS16 or 15.
For example, I have my iPad Pro 11 M2 for like 2 years now and basically just use it for web browsing. On OS 15 and OS16 the iCloud backup was about 500MB. Now on OS 17 the „next backup size“ (when it was shown before 17.2) is like 6GB or something, so I canˋt backup the iPad anymore on the 5GB iCloud plan.
The same goes for an iPhone 13 Pro on another iCloud/Apple account.
I just can‘t figure out what the cause for this is as the backup size of all the apps to be included in the backup just don‘t sum up to this size. I also don‘t have large videos or files or anything on the iPad. My only imagination would be that the backup now wants to include cache data of certain apps (maybe video or music streaming apps like youtube or spotify), but also these apps don‘t take up that much space locally on my iPad.
Interestingly the backup size from the switch from an iPhone 13 Pro backup to an iPhone 15 Pro didn‘t increase the backup size much on the iPhone 15 Pro and I have way more data on my iPhone than on my iPad.
