Nice in theory, in practice you have LaTeX tools with synctex, command, environment and references autocompletion, live math preview, proper syntax highlighting, jump to error line, etc. Nothing like that is available for pandoc markdown AFAIK, except perhaps for Quarto, which may have its uses but is too slow for small/medium sized documents and its tooling is not that capable anyway. Besides, it adds yet another complex layer on top of an already way too layered stack.
I would be interested to see how the formula looks for a more complicated equation. For example, Eq 3.12 or 3.31 in the link https://arxiv.org/pdf/2203.09346.pdf
Thanks for your effort. With this example, I started testing typst again and it does look to have improved quite a bit. And it is of course extremely fast.