I grew up on Asterix comics in English. The main humour is around puns. The authors are French (or Belgian, not sure). So did they write puns in French and someone translated them and made sure the comic was still funny in English? Or did they write it in English?
I‘ve only ever read the German versions but to my knowledge, they have been originally written in french and it’s up to the translators to also translate the humour. As is generally with any media (books, movies, games, etc.).
That can work very well and sometimes translations can even add additional humour that the originals didn’t have.