Unable to add Capability in Vision OS

I am trying add Sign in with Apple but when I attempt to capability in my app nothing happens in the list

does apple not able to provide this feature yet in Vision OS or is there any bug or may be ami missing something which does not seems?

The documentation doesn't list visionos being supported https://developer.apple.com/documentation/sign_in_with_apple

Unable to add Capability in Vision OS
 
 
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