unsafe
By default, Goldmark does not render raw HTMLs and potentially dangerous links. If you have lots of inline HTML and/or JavaScript, you may need to turn this on.
I personally don’t know all the new Goldmark options, maybe there’s a setting in there for your use.
Welcome to the Hugo discussion forum @diogoferrari. Since this is your first time posting on the Hugo forums I wanted to point out it’s also possible to use other markdown processors, such as Blackfriday, which supports HTML by default.