It's a good question - and one I can't entirely answer - but it seems the mod was commissioned by ToastedShoes, who made a video showcasing it on his YouTube channel about a month ago (a heads-up that there's some sponsored content in the footage). My personal favourite is the extremely tall General Grievous Among Us crewmate with four floating lightsabers. I think there might be a joke there somewhere. They're capable of wielding lightsabers or using Force lightning (on the dark side at least), while the Fall Guys beans come with a range of costumes - one of which has Rowan Atkinson's face. Makes sense given a selection of the crewmates are basically eldritch horrors.
Made by TigerVenom22 and ToastedShoes, the mod replaces all original trilogy-era infantry with Fall Guys characters on the light side, and Among Us characters on the dark.
This time it takes the form of some suspiciously long legs, and some familiar crewmates are joining in on the action, as someone's made a Star Wars Battlefront 2 PC mod combining both Among Us and Fall Guys. We've already seen some fairly creepy content based on Fall Guys (I'm still trying to forget the bean anatomy shared by the official Twitter account), and now there's even more.