I found away to get Among Us on pc for free without a virus (I think it also work for chormebooks but Idk)
Here is the link for free Among Us without a virus for a computer Idk it will work for chormebooks though: https://drive.google.com/file/d/1clfDB3oK-RnBfBpIwgL_vxN4rEIOnn1U/view