The lock-in effect of passkeys is something that this protocol aims to solve though. The “only managed by your device” is what keeps us locked in, if there is no solution to export and import it on another device.
The protocol aims to make it easy to import and export passkeys so you can switch to a different provider. This way you won’t be stuck if you create passkeys e.g. on an Apple device and want to switch to e.g. Bitwarden or an offline password manager like KeyPassXC
The specifications are significant for a few reasons. CXP was created for passkeys and is meant to address a longstanding criticism that passkeys could contribute to user lock-in by making it prohibitively difficult for people to move between operating system vendors and types of devices. […] CXP aims to standardize the technical process for securely transferring them between platforms so users are free […].
Update: A license was added