Gonna be real difficult to recover from if you lose the device with your passkeys on it or that device is broken.
Couple that with eSIMs and you are looking at a lot of headaches for the non-tech savvy.
Supposedly you can use a security key but they are pushing biometrics, yikes!
Wait until passkeys and all their issues have been solved by the major players.
Don't lock yourself out of your digital life chasing something flashy and new.
Souls-like, but not as difficult.