They only require it if you already support other third-party authentication methods in the app. If you exclusively use your own authentication it is not required.
Sign in with Apple is pretty good and it doesn't ask you for a password, and you confirm with the power button/faceid if I'm not mistaken. It's very hard to spoof.
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And yet Apple requires apps to support Sign in to X with Apple
They only require it if you already support other third-party authentication methods in the app. If you exclusively use your own authentication it is not required.
Sign in with Apple is pretty good and it doesn't ask you for a password, and you confirm with the power button/faceid if I'm not mistaken. It's very hard to spoof.
That one's easy, Apple is not yet mandatory.