[kenada]

macOS also supports the APIs, but password manager developers don’t seem willing to implement them there.

I’ve used 1Password for a long time, but I’m probably going to drop it for Apple’s password manager because when users ask 1Password to add support, they are directed to use 1Password’s browser extension and universal autofill instead. Neither support passkeys in applications. I also find the browser extension buggy at times (especially with passkeys).

[WorldMaker]

I'm aware of iOS' APIs because of Strongbox (iOS Keepass-compatible client), and someone also mentioned that macOS Strongbox does the same thing just fine. That is interesting that in this case it seems specifically a 1Password choice/disinterest.