How does one avoid caligraphic font difference between Typst and LaTeX?

Questions
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3

One possible font with this style of calligraphic letters would be this Garamond Math with stylistic set 3. To only use this font for those letters, you can define a custom function like this (using some weird hacks to circumvent a current limitation of Typst) :

#let cal(it) = math.class("normal", box({
  show math.equation: set text(font: "Garamond-Math", stylistic-set: 3)
  $#math.cal(it)$
}) + h(0pt))