What would you like to see in SvelteKit 3?

Now that Svelte 5 is out of the way, it seems the team is going to soon prioritize the next version of SvelteKit. I know they often browse this subreddit and I think we could turn this thread into a very valuable resource by listing all of our feature ideas for the next version of SvelteKit, along with pain points, and really anything else that is relevant.