Comment by t_mann

The problems of Passkeys are more nuanced than just losing access when a device is lost (which actually doesn't need to happen depending on your setup). The biggest problem are attestations, which let services block users who use tools that give them more freedom. Passkeys, or more generally challenge-response protocols, could easily have been an amazing replacement for passwords and a win-win for everyone. Unfortunately, the reality of how they've been designed is that they will mainly serve to further cement the primacy of BigTech and take away user freedom.