It's possible in Big Sur to import data directly from Catalina file system?
I want to make fresh installation of Big Sur but I'm using last Catalina which I cloned to bootable external disk. My target is to import Apple mail mailboxes and its configuration (account included with smtp/imap/pop) What do you suggest?
It's possible in Big Sur to import data directly from Catalina file system? Or It's necessary to make export process?
[Re-Titled by Moderator]