https://sfmlab.com/project/c49a16a0-52ad-4cd1-a9d0-05d9e09860be/ here is the sfm file for claire if that makes it easier for anyone to convert it for vrchat
yah in the unity scene go to window? if i remember correctly then go to package manager yr gonna find FBX export or u can search it install package and yr done as long as its a model asset yr able to do whatever