I'm a somewhat tech-savvy person, and passkeys just feel so much like I'm being scammed.
I trained myself not to trust the browser to store a password, and instead use a password manager, but now I keep getting prompted to let the browser manage some magical thing.
What happens if I need to use the same account across different devices? Do I use some complicated login practice on each one and get a magical key? Is there some way other than signing in to Chrome or Firefox sync to share the "passkey" (what is it, a cert, a gpg key, some other magic number?) between my devices. If so, how do I prevent that from being compromised.
I know there's no magic silver bullet for security, and the complete mess that I see when places do use passkey makes me really unsure about it as a solution.