No, pretty much every part of that statement is false:
"Fox News" wasn't involved in this case in the first place.
The 2003 court case being cited (an appeal) was not about the "right to lie"....
In 30 May 2015, a website (publishing in French) called El Manchar, published an article called:
Title: Un nouveau marié dépose une plainte contre sa femme pour faux et usage
Translation: A ...
This article, from the French newspaper Le Monde, explains that Mr Desnard was fired because of his prolonged sick leave due to his car accident. He is suing because he contests his dissmissal.
A Portuguese court found the isolated use of nothing but a PCR-test is 'not fit for purpose'.
The purpose here being the ordered quarantine of those merely 'tested positive'.
The court concluded ...