True, but controversially, a lot of users are frustrated by re-running on the server when you do a client-side transition. There are huge discussions in next from gSSP times on how to work around that, because oftentimes, on a client side transition, you already have that data cached.
Comments
Example: a POST /comments that (a) adds the comment to the blog and (b) adds a success message to the central flash store.
I think remix handles this better than most I’ve seen.