once again I must ask: who asked for this?
It looks like the keynote team is adding some lovely quality-of-life features, I'm happy to see this update as I'm prepping a bunch of new and refreshed talks, but the first two items—the only ones that show up on the "what's new" splash screen—are "apple intelligence" nonsense I can't imagine wanting and all the actual good features are buried below the fold.
https://support.apple.com/en-ca/guide/keynote/tan700f60676/mac