Maybe I’m not seeing the forest for the trees, but it seems to me like there is no way to change the original title of a shared deck once it has been submitted?
(As in: The title actually appearing in Anki, not the one set for AnkiWeb while sharing.)
IOW, it’s not possible to push an update / new version of the same shared deck that carries a different name. Doing so will cause AnkiWeb to create an entirely new shared deck.
Another downside of this, though admittedly a rare one, is that it’s possible for the creator to rename the deck locally and then forget what s:he originally submitted it as. Ofc it’s possible to then download the old version from AnkiWeb and import it to a temporary profile so as to recover the title, but that’s a bit… convoluted.
e: Unrelated: Now universally supported media types like SVG & WEBP remain ignored for the deck’s image count.
e2: Also unrelated: It would be neat if we could edit just the deck description without having to reupload it entirely.