The overall feature seems really solid, but I'm impressed they couldn't reduce the average package size further from 40MB even when not using CEF. I guess that wasn't a huge focus when developing this feature? Tauri and Dioxus can easily hit less than 5MB for package sizes.
I find the feature matrix comparison to be extremely well done and the sections beneath explaining advantages and disadvantages to be some of the best docs I've read recently.
Deno Desktop is bundling the V8 JavaScript runtime so it can have JavaScript on the backend. Tauri uses rust for the backend and your browser's JavaScript engine for the frontend.