I'm just tired of every movie and effects studio trying their own take on the alien when we already a perfect one in the first one, Cameron had en excuse to not have it, so did Fincher and technically Jeunet, but both AvPs and the prequels had no reason to try to change it, and no, the whole "Protomorph" stuff is not a reason, the movie and cast called it of Xeno and the name was spread by a clickbait site