In the case of: https://app.aluracursos.com/course/logica-programacion-explorar-funciones-listas/task/86092
The valid option to change the text of the element is using .innerHTML. I think that is only valid if the text is only gived by a secure source. Otherwise, is dangerous
I DONT THINK that is something that should be explained on Introduction course, but maybe should be mentioned or appended to the end of response, as suggestion.