Nice model, but when importing to neos, i noticed that the bones are named unconventionally. Basically just had to go into blender and re-name the bones correctly. An easy fix, but something to keep in mind if you don't like to hassle.
3D model of Louis from beastars. Made in 3Ds max 2020 and exported in fbx. For vrchat just import the unitypackage, open the scene called LouisScene.unity and publish the avatar.