Unless you simply don't trust Apple's security promises (in which case why are you using Apple devices), iCloud backup is now E2EE encrypted [1]. A bit of wringing to turn it on, but totally worthwhile.
There are differences between iCloud and local backup. For example, iCloud backup doesn’t backup your Notes or Health data but local backup can. Sync != backup — without a backup, if you sync a bad change you’ve lost the data.
r00fus|2 years ago
[1] https://support.apple.com/en-us/HT202303
brantonb|2 years ago
https://support.apple.com/en-us/HT204136
zorrotorro|2 years ago
Though recently simple things as copying files have been a challenge.
58028641|2 years ago