the dude ranting about passkeys mentions twice that apple keychain on multiple occasions nuked a bunch of passkeys and presumably the entire keychain while i don't doubt this happened, it seems like a separate issue from "passkeys are bad." if 1p or anything else did this, you'd complain about 1p, the problem with keychain is that it's deeply embedded in the os, but apple's sync'd passkey implementation is objectively the most polished of the bunch. it's telling that everyone yes-and'ing the post is running android or using chrome (which has inconsistent sync'd passkey support)

also, just while i'm here, it's ridiculous that the author complains about caBLE, the hybrid passkey implementation that lets you auth with your phone by pointing at a qr code: if you have onboarded a new machine or have tried accessing a passkey protected account on somebody else's computer, it's wildly more convenient to use that than typing out some high entropy passphrase.