I like the new code blocks more! The syntax highlighting is more standard. I found the red comments on a grey background difficult to read in the old theme. However, I would still want to see higher contrast in the text.
It looks like the mobile view is getting fixed [1].
It feels like it's for developers using VSCode, who are not comfortable with a terminal. It is likely meant to be easy-to-use with a mouse-friendly user interface and lots of built-in functionalities.