WP bakery does not provide an option to upload custom fonts. You can set using the default font in the elements and in this case the theme font will be applied.
1. I am not talking about custom but your google font (palanquin).
2. You told me to make the category gallery -with caption and no hover- with wpbakery. OK.
Your current category gallery (from basel theme) is Palanquin (see attached).
the “theme default