Every form also normally ends up duplicating validation logic both in JS for client-side pre-submit UX and server-side with whatever errors it returns for the JS to then also need to support and show to the user.
Anecdotally, it seems like I encounter a lot more web apps these days where refreshing doesn’t reset the state, so it’s just broken unless I dig into dev tools and start clearing out additional browser state, or removing params from the URL.
Knock it off with all the damn state! Did we forget the most important lesson of functional programming; that state is the root of all evil?
There are times the user experience is just objectively better with more state, and you have to weigh the costs.
If I am filling out a very long form (or even multi-page form) I don’t really want all that state lost if I accidentally refresh the page.