I think that might be true at some maths and computer science meetings but is unheard of in other scientific fields.
You make a fair point - I'm talking specifically about CS/ML/AI conferences. I shouldn't overgeneralize.
It's the standard in most hard science fields. Also common in some humanities, too.
CS strongly prefers LaTeX [0,1] while broader journals and conferences prefer MS Word over it [2,3]. As long as there is not a solid infrastructure for these other typesetting systems, I never saw the appeal. I think for internal company reports they do have their uses, but other than that, why not use the LaTeX or Word? Realistically any person wanting to submit a work will know how to work with either one or the other.
I also don't see the need for journals and conferences to make a typst template for exactly these reasons. The templates will have to be community-made and then you still run the risk of having a paper rejected a year from now because the template is outdated.
[0] https://conferences.miccai.org/2025/en/PAPER-SUBMISSION-GUID...
[1] https://github.com/apoorvkh/cvpr-latex-template
[2] https://www.nature.com/nature/for-authors/formatting-guide
[3] https://www.science.org/content/page/science-information-aut...