macOS Sonoma has unified its support for “passkeys” and “passwords”. Which means, among other things, that you can’t use webauthn in Safari unless you also enable its native password autofill. This is probably a big usability upgrade for normal users, but a huge annoyance for me, because I have been gradually onboarding onto iCloud passkeys for a little while, but use 1Password for passwords. Now, every webpage pops up the autofill UI for both 1password and safari, and the popups z-fight.