Why did you feel the need to paraphrase what I said in my post?
Sometimes I wonder if my English is not as good as I think it is…
They don’t have to use the same stuff, but they will have access to one another information.
As I said in my post, they can have individual Calendars and Mail boxes, individual Reminders lists and individual Notes folders as well as individual Safari tabs groups.
However, all of these will be accessible by both of them so they cannot have any expectation of privacy, like I said.
EDIT:
⬇️⬇️⬇️ And now even an Angry reaction. I give up. 😂