I was able to use Typst for my thesis, it felt sooo smooth. Turned it into a conference paper half a year later, and had to use the IEEE Latex format to hand it in. Oof, that was humbling.
Not the person you’re asking, but I’ll just mention that pandoc has a Typst reader. I use a pandoc filter to write in markdown with math in Typst and convert to LaTeX:
andonvr · · focus · HN ↗
MaxBarraclough · · focus · HN ↗
leephillips · · focus · HN ↗
<a href="https://lee-phillips.org/typstfilters/" rel="nofollow">https://lee-phillips.org/typstfilters/