When choosing to share a deck, a URL share link is created. Let's say I shared the deck with a few people, and for whatever reason, I'd like to stop sharing. If I choose to share again, with other people in the future, Gamma will use the same share link again, meaning that I have no way of preventing the people I previously shared it with to use the old link again. Ideally, each time I choose to share a deck, a unique share link would be created, or at least, give me the option of choosing a new link, instead of reusing the old one. I realize that in some cases it may be desirable to reuse the old link, but in some cases, it's not.