Whether or not typst is “superior” is largely debatable, but here are some reasons why I personally prefer Typst to LaTeX:
leaner syntax
less boilerplate
(arguably) more intuitive syntax for math and formatting
real-time preview thanks to incremental compilation
automatic package management
Ability to perform calculations/data processing inline inside your document (I know you can do this in LaTeX as well, but typst makes it easier)
However, as Andrew said, it is very much still in beta, so I don’t think it can be a complete replacement for LaTeX. Basically, think of it as something in between LaTeX and Markdown. Less features, but easier to write.