>And surely the learning curve is not easier than Typst?

To be fair, (most) markdown is valid Quarkdown. Barrier to entry really doesnt get any lower than that. Of course the learning curve is not fully synonymous with the barrier to entry, but it's a significant part.

And "learning curve" is really such a subjective quality. Kinda fucked from the start once you put it in a comparison table. Explicit features are more objective but even then sometimes products dont NEED certain features because of their design.