Overleaf solves a lot of the same problems as Typst, although since it's still within the LateX ecosystem. For example changes are immediately visible (or immediately after a recompile, but practically I almost never notice) and Overleaf tries it's best to parse and simplify the dense error messages. So some of their points against LateX have been partially/entirely solved.
Typst looks cool, and I'm probably going to check it out at some point, but a comparison to similar web-based LateX solutions would be more useful than what they have at the moment is all I'm saying.