I Uploaded a Sample Armature That is Made to Work with Unity's

Broken rig in new update [Fixed] - Avatars 3.0 - VRChat Ask

A better Blender to Unity 3D importer

FBX rotation fix for Unity – Blender Knowledgebase

animation - Animating with armature and exporting to Unity - Blender Stack Exchange

Basic Robot Model with Mixamo Armature - Henry Egloff

Create Custom Outfits - Ready Player Me

is there a way to make a bone in a humanoid armature copy the rotation of another? : r/Unity3D

LIV Avatar best practices – LIV Help Desk

Armature not moving to 0,0,0 in Unreal from Blender Export - Animation and Rigging - Blender Artists Community