I’ve shared records via Organization & a Collection, but its tricky to devise a system when the records no longer belong to me (original owner & admin of both Organization & Collection). So the only way to move a record back to my vault (and out of the Organization) is to export it, delete it from Org, then re-import that record.
I’m very careful not to cloud backup the directory that holds the temporary CSV file (for export/import) but I’m not keen managing the records outside of the app/vault where they are unencrypted. Not to mention the extra steps involved when it could just be drag/drop GUI or select a move operation in the gear wheel of a record (or folder).
It would be great to hear how owners are handling this (even for a family of 5, which is my situation).