I use a KeePass-compatible password manager, Strongbox, for my passwords. Recently its extension seems to work in Orion (horray!), but one notable downside is that while passwords fill, PassKeys do not.
In Safari, when I visit a website that uses Webauthn or Passkeys (related technologies), I see this:
However when I sign in with Orion, I just see this on Amazon:
On some other websites, Orion does indeed seem to support hardware tokens like a Yubikey (I think?), but it never supports software ones in Strongbox the way Safari does.
Support for that would be nice.
I imagine the feature would be useful for any third party password managers that integrate with macOS's autofill API. It helps people who use third party browsers (like Orion) also use their favorite third party password managers (like Strongbox).