Redbean requires you to write server code; Pocketbase does not. Redbean does not offer a realtime database, authentication, an admin dashboard, integrated file storage, or an inbuilt API.
I like Redbean, but it's in a completely different "market sector". It's like comparing a kit car to a luxury car: yes, they both technically serve the same purpose, but one requires much less assembly and offers a much more usable experience out of the box.