All of these are page transitions, like when you leave one page and go to another. As opposed to the document.startViewTransition kind, which are also cool, but not as game-changing.
Here’s my playing around, which you can see in this Project.
That’s an <a> that turns into a <div> on the next page, because that’s just something you can do and it’s amazing.
Here’s Dave’s Site:
Austin Crim did the same kinda thing:
Here’s Jim playing around:
Maxi Ferreira built an Astro site with page transitions based on a design by Ehsan Rahimi:
Here’s Adam “stress testing” what it can do:
You can always feel a tiny smidge of a delay, which I’m sure is because the browser needs to request the next page and (I think?) render it so it can be sure to find any matching view-transition-names on elements in order to tween. Worth it.