将来ぱすきーしか使えないサービスが始まっちゃった場合には良い選択肢かもしれないな
Proton Pass now supports passkeys on all devices and plans | Proton https://proton.me/blog/proton-pass-passkeys
Proton · Proton Pass now supports passkeys on all devices and plans | ProtonProton Pass supports passkeys for everyone, allowing you to manage and use passkeys across all devices seamlessly.