So much for One Universal and Apostolic Church.
Seems like the rules vary for each individual diocese anymore.
Respectfully, no. Regarding such as the sanctity of Marriage, or the grave sin inherent in homosexual activity, these are truly universal. All must accept these teachings, or they are not Catholic. If you are perhaps making a reference to a difference in how faithfully these are followed by a particular diocese, that may be the case. But, to paraphrase your comment, no the rules do not vary for each individual diocese in these particular things. May I make a suggestion? If you visit the link to the original article, a pdf of the complete letter is there. It’s very well done, certainly worth your time.