Interesting article on CNN about how the ban is not really a ban, and the continuing struggle to find a long term solution to Cruise, and Commercial Ships in the lagoon.
https://www.cnn.com/travel/article/venice-cruise-ships-ban-2021/index.html
At best. just a reminder not to take the "Headline" or even a proclamation by one branch of government (Not just in Italy, but many Countries) as resolute fact.