I use typst.app mostly, but used typst for formulas in quarto and in Makie.jl for combining scientific figures with complex formulas.I wrote some smaller documents and one paper collaboratively as of yet. Speed is amazing, error messages are interpretable.

The git integration works ok, once we had an issue with a weird branch problem but more on our side, but there is no way to fix it from typst.app right now.

What is missing is a suggestion-feature, mimicking track changes in word. E.g. overleaf has this (but not super nice imho).

Coming from a hacky-latex experience (not a latex dev in any way) of >10 years, the switch was immediate and easy. All that arcane knowledge I can now forget, figure, captions etc. just work.

I don't have experience with super crazy long formulas, not a mathematician.

But yeah, I was super sceptical at first - I mean, the promise to replace latex is a bit insane. But for my stuff, it just works.

Just try it at typst.app, maybe you don't even need to register, I don't remember.