Functionality: Gold spouse vs non-Gold spouse?

Hi. I understand that Gold subscription permits sharing of custom recipes and some form of advanced analytics, and that if myself+spouse seek to share custom recipes that only one of us need be a gold subscriber. Please confirm.
Also, does it matter which person is the gold subscriber?
Are the recipes shareable between users or only from the gold user to non-gold user?
Do any advanced analytics/other features only apply to the gold user?
Thanks.

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