Please make the process of converting Dynamic Bones to Physic Bones appear in VRChat/Utilities menu in the SDK. Having it as an Auto Fix option is great, but a tool that properly supports Unity's undo system would be nice for those who might click Auto Fix just because it says fix.
This wording from the docs also made me miss the Auto Fix button after making me think it happened automatically during the Build stage, which is what made me look to VRChat/Utilities:
"This process happens before uploading your avatar. This process deletes the previous Dynamic Bone components from your avatar and can not be easily reversed."