Apple One Family plan
Is the iCloud storage of 200GB in Apple One family plan will be split equally to five people or depends on the usage of member?
iPhone 7, iOS 14
Question marked as
The shared family iCloud storage is what it means - a shared space and not allocated to any individual member. However, each family member's space is theirs alone.
The cumulative space can't exceed your plan (ie. 200GB) but each member is free to use as much as they need within that limitation.
See this support page.