1. Beamer, I create multiple slide decks per week and the out of the box setup that beamer provides with different styles and fonts for different needs are unmatched. The efforts to generate some of this on typst is not there yet.
2. Generating figures using tikz and be able to modify it on the source file. Because I don't bear using GUI tools. And now life is easier that LLM can help you with complex tikz generation.
3. Not that it is actually a point but I am used now to overleaf and I have professional account as CERN member. It is also better on collaboration level and features than typst cloud.
I hope that one day typst will grow into this direction so that I can stop using LaTeX. Until then I have couple of overleaf templates generated for my use.