I much preferred Marp to PowerPoint, but there were several parts of it I wasn't fond of:

- Using CSS for formatting resulted in a lot of one-off rules, and was a lot noisier and less readable than the equivalent in Typst.

- The use of CSS for formatting also meant that the Marp compiler couldn't catch most of my silly mistakes. With Typst the compiler will catch those mistakes.

- Using a plugin to selectively highlight lines required writing a custom "engine" in JS, which was a pain to get working. Using a package in Typst is extremely simple.

- And I had to use npm to install the plugin in the first place. Typst comes with a package manager built-in.

- Generating PDFs required that I installed Chrome/Chromium. Typst does that out of the box.

The only place, that I can think of, where Marp is ahead of Typst, is with regards to generating HTML based presentations. But that probably won't be the case forever, and I personally always use PDFs for the final presentation, since that means that a lot less can go wrong. Especially so if I am not using my own PC when giving the presentation