iCloud plus
For multiple family members with their own phones using iCloud family share, is each family members stuff private to their phone
iPhone 8 Plus, iOS 16
Question marked as
Yes. See the following from Share iCloud+ with your family - Apple Support
When you share an iCloud+ subscription, everyone in the family group uses their own account. That way your photos, documents, and other information stay private, even though you're sharing access to the service. You simply share the features and space available in iCloud+ with your family members, so you only have one plan to manage.